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I do not get this someone help

I do not get this someone help-example-1
User Mbaydar
by
8.2k points

1 Answer

4 votes

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.

User Keitaro Urashima
by
8.8k points

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