The graph of y=f(x) is shown below in red. For which x value does f(x)=4
Assume grid lines are spaced 1 unit apart
You have to do a little equation solving here.
If you want a value of x to be equal to 4, you take the function -2x+2 and make it equal to 4 so you have -2x+2=4.
Your turn to solve it.