Question

Assume f(x) = -2x + 8 and g(x) = 5x. What is the value of (f - g)(2)?

Answer 1

first take f(x) - g(x)
= -2x+8 -5x
= -7x +8

now they ask for the value at x=2

=-7(2)+8
= -14+8
(f-g)(2)= -6

Answer 2

so the answer is -6?

Answer 3

Yes :o