A. The equation of this line is x = 3. B. This graph is not a function because the value x = 3 is assigned to
more than one y-value.
C. This graph is a function whose range is the set {3}.
D. This graph is a function because the value of x is the same for
every value of y.
E. This graph is a function whose domain is the set (3)

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.