SOLUTION: please help me solve this What equation of the line passes through the points with coordinates (-2,1) and (1,2)

Question 374699: please help me solve this
What equation of the line passes through the points with coordinates (-2,1) and (1,2)
Answer by sophxmai(62) (Show Source): You can put this solution on YOUR website!
Ok, so your coordinates are (-2,1) and (1,2).
The equation of the line is y=mx+b

First, find the slope, m.

Now, you have
Now, plug in one of the coordinates in for x and y, and then solve for b (the y-intercept).

And now you have

To check to see if this is correct, sub in x or y of one coordinate and see if you get the other value (sub in x, get the correct y, or sub in y and get the correct x).
(-2,1)

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