Question

What is the value of the function when x = 3? x −2 −1 1 3 4 y 4 3 6 5 8

Answer 1

It tells us that:

(-2,4)
(-1,3)
(1,6)
(3,5)
(4,8)

Look at (3,5) ... it tells us that x = 3 and y = 5

So y = 5