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alisha [4.7K]
3 years ago
5

The slope of line m is 7/8. If n⊥m, what is the slope of line n?

Mathematics
2 answers:
lys-0071 [83]3 years ago
8 0
k:y=m_1x+b\\l:y=m_2x+c\\\\l\ \perp\ k\iff m_1m_2=-1
We have:
m_1=\dfrac{7}{8};\ m_2=?
Substitute:
\dfrac{7}{8}m_2=-1\ \ \ \ |\cdot\dfrac{8}{7}\\\\m_2=-\dfrac{8}{7}
Answer: D)

pochemuha3 years ago
6 0
Hey there !

When two lines are perpendicular , the product of their slope is -1 ,

m1 × m2 = -1
7/8 × m2 = -1

m2 = -8/7 Ans.
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