Question

What is the input value for the following function if the output value is 4.5?

y = x/2


2.25
6.5
8
9

Answer 1

output is y
input is x

Answer 2

The input value would be the x, and the output value would be the y. So, given y=x/2, we need to find x if y=4.5. So we'll plug in 4.5 for y:
\[4.5=x/2\] So we only need to multiply both sides by 2 to get our answer:
\[9=x\]

Answer 3

solve for x
4. 5 = x/2