I love it when you guys as us to show our work. Ever think of showing some of yours?
y' = 6x+4
The line given has slope -2.
So, when do we have
6x+4 = -2?
x = -1
y(-1) = -2, so we want the point (1,-2) to be on the line. That means
-2 = -2(-1)+b
b = -4
See the graphs at
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