Question

for each function what is f(-2)?

a. f(x)= 3x +5
b. f(x) = -5/2x -2

Answer 1

Substitute -2 into each equation and calculate.

a. f(x)= 3x +5 = 3(-2) +5 = ?

b. f(x) = -5/2x -2 = (-5/2)(-2) - 2 = ?