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Answer:
when
and
so the tangent slopes are and -2 at those x.
The lines are y = 2x + b and y = -2x + c.
We need to find b and c.
The first line must go through (-8,0) and the second one through (-10,0).
For the first line: 0 = 2*(-8) + b and b = 16.
For the second line: 0 = -2*(-10) + c and c = -20.
Step-by-step explanation:
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