Passes through (-2,2) and (5,-4) find the slope and the equation using y=mx+b form. I need to see all the steps when finding b ( y-intercept).

Question

Passes through (-2,2) and (5,-4) find the slope and the equation using  y=mx+b form. I need to see all the steps when finding b ( y-intercept).

anonymous · Answer

Do you need to find a line that passes through this point? 

In that case it would be best to do this:
Find the slope using this equation: m(slope)= y2-y1/x2-x1
(Here y1 could equal 2 and y2 could equal -4, or the other way around. Just make sure that whichever set of coordinates you choose to be your first is the one you use for both the x and the y)

Then plug in one of the set of points into the equation: y=mx+b. This will give you your b, or y-intercept.

swag · Answer

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