Answer
$(1,-9), (0,0), (2,-18)$
Work Step by Step
To find the missing value, we plug in the value that we are given into the given equation and solve.
$(1, ?) \rightarrow y=-9(1) = -9 \rightarrow (1, -9)$
$(0, ?) \rightarrow y = -9(0) = 0 \rightarrow (0, 0)$
$(?, -18) \rightarrow -18 = -9(?) \rightarrow ? = \frac{-18}{-9} = 2 \rightarrow (2, -18)$