Question

If f(x)=-4x+8, what is f(2.5)?

Answer 1

The explanation the person gave is correct but the answer is -2. Since it’s -10+8=-2 bc the 10 is a negative...

Answer 2

Answer: f(2.5) = -2

Explanation:

To find f (2.5) means we substitute 2.5 into x in the given equation:

F (2.5) = -4 (2.5) + 8 .....multiply 2.5 by -4, then add.

F(2.5) = -10 + 8

F(2.5) = -2

I hope this helps.