Question

F(x) = 9x + 3 ; x =-10

Answer 1

f(-10) = -87

Explanation:

x = -10

f(x) = 9x + 3

f(-10) = 9(-10) + 3 Replace x with the given number

= -90 + 3 Multiply 9 and -10

f(-10) = -87 Add -90 and 3