Question

If f(x)=-2x+5, find f(4).*

Answer 1

Answer: x=-1/2y+5/2

Explanation:

Step 1: Flip the equation.

−2x+5=y

Step 2: Add -5 to both sides.

−2x+5+−5=y+−5

−2x=y−5

Step 3: Divide both sides by -2.

−2x/-2=y-5/-2