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3 years ago

13

What is the slope of the line that contains the points (5, –9) and (5, 9)?

2 answers:

Yakvenalex [24]3 years ago

6 0

It would be: (y2-y1) / (x2-x1) = (9-(-9)/5-5 = 18/0 = undefined

OPTION D IS YOUR ANSWER.........

Evgesh-ka [11]3 years ago

4 0

Slope(m)=(y2-y1)/(x2-x1)
here
(5,-9)=(x1,y1)
(5,9)=(x2,y2)
so, m= (9+9)/(5-5)=infinity
it means the line is perpendicular with the x-axis
because tan90 is equal to infinity
so in order to make slope infinity the line should make 90 angle with positive x axis

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