The graph of y=f(x) is shown below. Determine the value of x when f(x)=3?

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Explanation:

Locate 3 on the vertical y axis number line. Draw a horizontal line through this y value until you hit one of the four marked points. You should land on point D. Then drop straight down until you get to the x axis. You should get to x = -3

So in short, f(-3) = 3

This is a reverse process compared to something like shown here

Check out the diagram below.

answer: it's upside down and i can't read it

step-by-step explanation: