Answer:
Y-intercept: (0,22)
Explanation:
Hi there!
So, with this problem, you need to use these points to find your slope-intercept form (y=mx+b). The "m" is the slope and the "b" is the y-intercept.
First, you need to find your slope. The basic definition is the change in y over the change in x: (y₁-y₂)/(x₁-x₂). I used the coordinates (-56,66) and (-42,58), but you are more than welcome to use another pair if you'd like.
I plugged in the coordinates to get (66-58)/(-56-(-42)) and then doing some basic math, it simplifies to: 8/-8 so your slope is -1.
Now, all you have to do is plug in some numbers and then solve for b.
Ill use the coordinates (-28,50) to help solve it
50=-1(-28)+b
50=28+b
Bring the 28 to the other side to get:
22=b
As I defined earlier, b is your y-intercept so you just need to put in coordinates to get (0,22). Since the y-intercept is on the y-axis so the x is 0.