[tex]y = {x}^{2} [/tex]
[tex]y(8) = {8}^{2} = 64[/tex]
[tex]y(0) = 0 {}^{2} = 0[/tex]
[tex]y( - 7) = ( - 7) {}^{2} = 49[/tex]
[tex]y = 0 .01\\ {x}^{2} = 0.01 \\ x {}^{2} - 0.01 = 0 \\ (x - 0.1)(x + 0.1) = 0 \\ x _{1} = 0.1 \\ x _{2} = - 0.1[/tex]
[tex]y = 81 \\ {x}^{2} = 81 \\ {x}^{2} - 81 = 0 \\ (x - 9)(x + 9) = 0 \\ x_{1} = 9 \\ x _{2} = - 9[/tex]
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Answers & Comments
[tex]y = {x}^{2} [/tex]
[tex]y(8) = {8}^{2} = 64[/tex]
[tex]y(0) = 0 {}^{2} = 0[/tex]
[tex]y( - 7) = ( - 7) {}^{2} = 49[/tex]
[tex]y = 0 .01\\ {x}^{2} = 0.01 \\ x {}^{2} - 0.01 = 0 \\ (x - 0.1)(x + 0.1) = 0 \\ x _{1} = 0.1 \\ x _{2} = - 0.1[/tex]
[tex]y = 81 \\ {x}^{2} = 81 \\ {x}^{2} - 81 = 0 \\ (x - 9)(x + 9) = 0 \\ x_{1} = 9 \\ x _{2} = - 9[/tex]