Question

For the line y = 2/3x, if the y-coordinate is 14, what is the x-coordinate?

A. 7
B. 14
C. 21
D. 3/2

(I think it's 21, show your work, don't answer unless you're 100% sure.)

Answer 1

yes 2/3 *21 would give you 14 and that is the reasoning because you have to look for a number to sub in to x to make the equation true.

Answer 2

The answer is 21. Substitute y for 14 and isolate x.