Question

What is the value of the function f(x)=3(4-x) when x=7?

1. 33
2. -9
3. 9
4. -21

Answer 1

Hey there.

f(x) = 3(4 - x); x = 7
f(x) = 3(4 - 7); Apply PEMDAS
f(x) = 3(-3)
f(x) = -9

Your answer is B.) -9

I hope this helps!