Question

What is the value of f(x)=23.2x+2.5 at x =-4.2

Answer 1

Since x = -4.2, just fill it in the equation and solve:

23.2 * -4.2 + 2.5 =

23.2 * -4.2 = -97.44

-97.44 + 2.5 = -94.94

f(x) = -94.94

Explanation:

Hope it helps! =D

Hope it ain't wrong either. If so, I'm sorry.

Answer 2

-94.94

Explanation:

f(x)=23.2x+2.5

Let x = -4.2

f(4)=23.2(-4.2)+2.5

=-97.44+2.5

=-94.94