Two vertices of a rectangle are (−10, −7) and (−10, 18) .

What is the length of this side of the rectangle?

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

333.74 ! should be your answer for this question