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a)
1) Jest to punkt (0,0).
2) Jest to punkt (0,0) oraz punkt (2,0).

Zauważmy, że: 3−8<svg xmlns="http://www.w3.org/2000/svg" width='400em' height='1.08em' viewBox='0 0 400000 1080' preserveAspectRatio='xMinYMin slice'><path d='M95,702
c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5,-10,-9.5,-14
c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54
c44.2,-33.3,65.8,-50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10
s173,378,173,378c0.7,0,35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429
c69,-144,104.5,-217.7,106.5,-221
l0 -0
c5.3,-9.3,12,-14,20,-14
H400000v40H845.2724
s-225.272,467,-225.272,467s-235,486,-235,486c-2.7,4.7,-9,7,-19,7
c-6,0,-10,-1,-12,-3s-194,-422,-194,-422s-65,47,-65,47z
M834 80h400000v40h-400000z'/></svg>​=−2 &nbsp; log2​16=4 &nbsp; &nbsp;&nbsp;

Obliczamy wartości funkcji&nbsp;f&nbsp;dla wszystkich argumentów ze zbioru&nbsp;X: f(3)=3−3<svg xmlns="http://www.w3.org/2000/svg" width='400em' height='1.08em' viewBox='0 0 400000 1080' preserveAspectRatio='xMinYMin slice'><path d='M95,702
c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5,-10,-9.5,-14
c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54
c44.2,-33.3,65.8,-50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10
s173,378,173,378c0.7,0,35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429
c69,-144,104.5,-217.7,106.5,-221
l0 -0
c5.3,-9.3,12,-14,20,-14
H400000v40H845.2724
s-225.272,467,-225.272,467s-235,486,-235,486c-2.7,4.7,-9,7,-19,7
c-6,0,-10,-1,-12,-3s-194,-422,-194,-422s-65,47,-65,47z
M834 80h400000v40h-400000z'/></svg>​=0<svg xmlns="http://www.w3.org/2000/svg" width='400em' height='1.08em' viewBox='0 0 400000 1080' preserveAspectRatio='xMinYMin slice'><path d='M95,702
c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5,-10,-9.5,-14
c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54
c44.2,-33.3,65.8,-50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10
s173,378,173,378c0.7,0,35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429
c69,-144,104.5,-217.7,106.5,-221
l0 -0
c5.3,-9.3,12,-14,20,-14
H400000v40H845.2724
s-225.272,467,-225.272,467s-235,486,-235,486c-2.7,4.7,-9,7,-19,7
c-6,0,-10,-1,-12,-3s-194,-422,-194,-422s-65,47,-65,47z
M834 80h400000v40h-400000z'/></svg>​=0 &nbsp;

a) Wykres funkcji f: 
<img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/85099/KphvLNxV0wVblKk1enKFKw%3D%3D_14e9a9ed49bf0a3d2f2b91f53bab469e4c974903a0458b7f1161e5a447b3bc30.jpg" alt="" width="538" height="235">

Wykres funkcji f: <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/85145/FN%2BSBrKbgKlP09Ffgvr45w%3D%3D_b2bec742f37a5eabc467871e79ddcce9f8e30ef726f4e586c3b8da29d33cd19c.jpg">&nbsp; &nbsp;

a) <table style="border-collapse: collapse;width: 570px;height: 75px;" border="1"> <tbody> <tr> <td style="width: 78px;"> x &nbsp;</td> <td style="width: 78px;"> −3 &nbsp;</td> <td style="width: 78px;"> −2 &nbsp;</td> <td style="width: 78px;"> −1 &nbsp;</td> <td style="width: 78px;"> 0 &nbsp;</td> <td style="width: 78px;"> 1 &nbsp;</td> <td style="width: 78px;"> 4 &nbsp;</td> <td style="width: 78px;"> 9 &nbsp; </td> </tr> <tr> <td style="width: 78px;"> f(x) &nbsp;</td> <td style="width: 78px;"> 1 &nbsp;</td> <td style="width: 78px;"> 1 &nbsp;</td> <td style="width: 78px;"> 1 &nbsp;</td> <td style="width: 78px;"> 1 &nbsp;</td> <td style="width: 78px;"> −1 &nbsp;</td> <td style="width: 78px;"> −2 &nbsp;</td> <td style="width: 78px;"> −3 &nbsp;</td> </tr> </tbody> </table>

Zauważmy, że: <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/8b674bb78eba8dbe88d665b8c03652754565fb3626746c5b6ca77df4d67e55b8_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/8b674bb78eba8dbe88d665b8c03652754565fb3626746c5b6ca77df4d67e55b8_big.svg" type="image/svg+xml"></object> &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/c7ebe4c9826b2729c7c851c18d7cb939033fbe5b4b40f35cc0a5fbc29a2d4add_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/c7ebe4c9826b2729c7c851c18d7cb939033fbe5b4b40f35cc0a5fbc29a2d4add_big.svg" type="image/svg+xml"></object> &nbsp; &nbsp;&nbsp;

Obliczamy wartości funkcji&nbsp;f&nbsp;dla wszystkich argumentów ze zbioru&nbsp;X: <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/f490d86b3be6974ad5acd8425d30f067642dd0d6813d23169ffaf2185d725700_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/f490d86b3be6974ad5acd8425d30f067642dd0d6813d23169ffaf2185d725700_big.svg" type="image/svg+xml"></object> &nbsp;

Zauważmy, że: <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/55af75354be1ff8ba58f3d7f149e0cf45da6a14dbcd065d3df74b2020fbbb02a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/55af75354be1ff8ba58f3d7f149e0cf45da6a14dbcd065d3df74b2020fbbb02a_big.svg" type="image/svg+xml"></object> &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/928e7175f1e3b0e301cd6e500c49ae893da771e628e4786c307aea2abee8e26c_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/928e7175f1e3b0e301cd6e500c49ae893da771e628e4786c307aea2abee8e26c_big.svg" type="image/svg+xml"></object> &nbsp; &nbsp; &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/4c16985ff1808bda96ffc0712f85470c82121dce69696ec7c5daea2a5086b30f_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/4c16985ff1808bda96ffc0712f85470c82121dce69696ec7c5daea2a5086b30f_big.svg" type="image/svg+xml"></object> &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/0be605bd139145386b15973e3ad98c9456b31a161a52a8934c9f6ef8b69d80e9_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/0be605bd139145386b15973e3ad98c9456b31a161a52a8934c9f6ef8b69d80e9_big.svg" type="image/svg+xml"></object> &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/366469f7e802577a1bd490b0d7a4525a51e043e612503df8d3a1198f0e4120cb_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/366469f7e802577a1bd490b0d7a4525a51e043e612503df8d3a1198f0e4120cb_big.svg" type="image/svg+xml"></object> &nbsp; &nbsp; Zatem otrzymujemy: <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/d4167b0322733b05db0c295910643e5fe0cc847959b2b8f3764ea8dfd910f917_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/d4167b0322733b05db0c295910643e5fe0cc847959b2b8f3764ea8dfd910f917_big.svg" type="image/svg+xml"></object> &nbsp; &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/0e78b7fc94b4a7565ca9fafa9de7f014de403139740dacb05de422e590f48f8b_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/0e78b7fc94b4a7565ca9fafa9de7f014de403139740dacb05de422e590f48f8b_big.svg" type="image/svg+xml"></object> &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/8f80719b30d718ef5aefd93edd02bd158e2325559ce8156c73453a46e753e1d5_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/8f80719b30d718ef5aefd93edd02bd158e2325559ce8156c73453a46e753e1d5_big.svg" type="image/svg+xml"></object> &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/dbf8dfdaca4aeaa1acc5888af2bad6173f0f983871e4f4e83c3ebc3a62f8fc3b_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/dbf8dfdaca4aeaa1acc5888af2bad6173f0f983871e4f4e83c3ebc3a62f8fc3b_big.svg" type="image/svg+xml"></object> &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/c28f9db1a68dbb5be8a0ee76ca04a30cac6bd9fbb5eb424d31dfc826575049d8_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/c28f9db1a68dbb5be8a0ee76ca04a30cac6bd9fbb5eb424d31dfc826575049d8_big.svg" type="image/svg+xml"></object> &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/e03fa96478ad0e8ca4c12fb8784920c1c51da4e98a2dadce8f74ade6a038a253_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/e03fa96478ad0e8ca4c12fb8784920c1c51da4e98a2dadce8f74ade6a038a253_big.svg" type="image/svg+xml"></object> &nbsp; &nbsp; Wykres funkcji f: <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/85098/YYxobdM%2B7lqP51RQwvnUIg%3D%3D_db0ceb42bdeb4c927ceb4d11f4da7b52db71b0dda8d8a275930a1e8fc0f8f44b.jpg" alt="" width="298" height="463">

a) <table style="border-collapse: collapse;width: 570px;height: 75px;" border="1"> <tbody> <tr> <td style="width: 78px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/2d711642b726b04401627ca9fbac32f5c8530fb1903cc4db02258717921a4881_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/2d711642b726b04401627ca9fbac32f5c8530fb1903cc4db02258717921a4881_big.svg" type="image/svg+xml"></object> &nbsp;</td> <td style="width: 78px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/615bdd17c2556f82f384392ea8557f8cc88b03501c759e23093ab0b2a9b5cd48_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/615bdd17c2556f82f384392ea8557f8cc88b03501c759e23093ab0b2a9b5cd48_big.svg" type="image/svg+xml"></object> &nbsp;</td> <td style="width: 78px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/cf3bae39dd692048a8bf961182e6a34dfd323eeb0748e162eaf055107f1cb873_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/cf3bae39dd692048a8bf961182e6a34dfd323eeb0748e162eaf055107f1cb873_big.svg" type="image/svg+xml"></object> &nbsp;</td> <td style="width: 78px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/1bad6b8cf97131fceab8543e81f7757195fbb1d36b376ee994ad1cf17699c464_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/1bad6b8cf97131fceab8543e81f7757195fbb1d36b376ee994ad1cf17699c464_big.svg" type="image/svg+xml"></object> &nbsp;</td> <td style="width: 78px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9_big.svg" type="image/svg+xml"></object> &nbsp;</td> <td style="width: 78px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b_big.svg" type="image/svg+xml"></object> &nbsp;</td> <td style="width: 78px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/4b227777d4dd1fc61c6f884f48641d02b4d121d3fd328cb08b5531fcacdabf8a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/4b227777d4dd1fc61c6f884f48641d02b4d121d3fd328cb08b5531fcacdabf8a_big.svg" type="image/svg+xml"></object> &nbsp;</td> <td style="width: 78px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/19581e27de7ced00ff1ce50b2047e7a567c76b1cbaebabe5ef03f7c3017bb5b7_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/19581e27de7ced00ff1ce50b2047e7a567c76b1cbaebabe5ef03f7c3017bb5b7_big.svg" type="image/svg+xml"></object> &nbsp; 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