Question

6) Seja a função definida por f(x)= x2 -7x +10, calcule:
a)f(0)=
b)f(2)= c)f(-1)= d)f(-3)=
​

Answer 1

Boa Noite !!!

$x^{2} - 7x + 10\\\\\longrightarrow Devemos\ trocar\ x\ por\ cada\ valor\ pedido:\\\\\downarrow ^{2} - 7.\downarrow + 10\\\\a) f(0) = 0^{2} - 7.0 + 10\\\\a) f(0) = +10\\\\b) f(2) = 2^{2} - 7.2 + 10\\\\b) f(2) = 4 - 14 + 10\\\\b) f(2) = 0\\\\c) f(-1) = (-1)^{2} - 7.(-1) + 10\\\\c) f(-1) = 1 + 7 + 10\\\\c) f(-1) = 18\\\\d) f(-3) = (-3)^{2} - 7.(-3) + 10\\\\d) f(-3) = 9 + 21 + 10\\\\d) f(-3) = 40$

Espero ter ajudado :-)

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