Your answer is in fact correct! When graphing the equation the y - intercept is about ( 2, 0 ) and the x - intercept is ( 0, -15 ). The line does in fact cross the point that is ( 3, 6 ).
Replace x with 3 and y with 6 and see which equation is true.
A) y = 7x - 15
6 = 7(3) - 15
6 = 21 - 15
6 = 6
The point (3, 6) makes the first equation true, so the answer is A). Point (3, 6) does not make any other choice a true equation. Answer is definitely A).
3/4 is the simplified version of 6/8. How I got this is I know that 4 goes into 8 twice so you multiply by 2. Whatever you do to the bottom you do to the top so you will get 6/8.
