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What’s the answer to this please?

What’s the answer to this please?-example-1
User Fmuecke
by
7.7k points

1 Answer

2 votes
ANSWER

C. Yes, their slopes have product -1

Step-by-step explanation

The slope of the line connecting

P(1,3) and Q(7,8) is



= (8 - 3)/(7 - 1)


= (5)/(6)

The slope of the line connecting
R(5,-7) and S(10,-13) is


= ( - 13 - - 7)/(10 - 5)



= - (6)/(5)


Product of the two slopes is


= (5)/(6) * - (6)/(5)


= - 1


Since the product is -1, the slopes are perpendicular.


The correct answer is C.
User Scott Hernandez
by
7.5k points

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