Answer:
The y-intercept is -9
Explanation:
So, I could explain how to find the y-intercept with any two points, or I could just point out that the y-intercept is whatever the y is in an ordered pair when the x is zero.
However, if you really want to know: First you have to find the slope. You subtract one y value from the other (-14--9, or -14+9), and subract the x values from one another without mixing up the ordered pairs (-3-0), and put the solution to the y over the solution to the x (-5/-3) and simplify if possible (5/3).
Then, you take the formula for a slope (y=mx+b), and add the slope you just found in (y=5/3x+b). Then, you take one of the points you know and put it in the equation (-14=5/3*-3+b). Then, you solve for b (simplify 5/3*-3 to get -5, -14=-5+b, add 5 on both sides. -9=b)