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Graph the line y=−3x+b if it is known that the graph goes through point:

A(−2, 4)
B(5, 2)
 

 Oct 10, 2020
 #1
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If you're trying to find out what b is then you should know that b is the y-intercept. So you just choose one of the coordinates and substitute it into the equation. I'll use A's coordinates.

y=-3x+b

4=-3(-2)+b

4=6+b

So to get from 6 to 4 you subtract 2.

b = -2

 Oct 10, 2020

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