Question

If f(x) = 5x 40, what is f(x) when x = –5?

Answer 1

f(x)=5x*40 so we know that x=5 so f(5)=(5*5)40 so we have f(5)=25*40 and 25*40= 1000 so 1000/5=f and f is 200

Answer 2

5(-5)(40)=f(x) you just multiply everything together, so you would get -25*40, which is -1000