Question

dada a função f(x)=-3x² -4×-7 a)f (-1) b)f (-2) c)f (3) d)f (-4) e)f (-5)

Answer 1

f(x) = -3x²

a) f(-1) = -3.(-1)²

f(-1) = -3.1

f(-1) = -3

b) f(-2) = -3.(-2)²

f(-2) = -3.4

f(-2) = -12

c) f(3) = -3.(3)²

f(3) = -3.9

f(3) = -27

d) f(-4) = -3.(-4)²

f(-4) = -3.16

f(-4) = -48

e) f(-5) = -3.(-5)²

f(-5) = -3.25

f(-5) = -75