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Crank
3 years ago
8

Select the correct answer.

Mathematics
1 answer:
scoray [572]3 years ago
4 0

Answer:

D). Y = 4x -6

Step-by-step explanation:

Let's get the gradient of line MN

Gradient= (y2-y1)/(x2-x1)

Gradient=( 6-3)/(-7-5)

Gradient= 3/-12

Gradient= -1/4

For a line to be perpendicular to line MN , it gradient multiplied with line MN gradient will be equal to -1

MM'= -1

M = gradient of line MN

M' = gradient of the unknown line

MM'= -1

-1/4M'= -1

M' =( -1*4)/-1

M' = 4

So the line will have a gradient of 4

That is, the equation well be in the form of

Y= 4x +c

Where c can be a positive or negative intercept or constant.

The correct option is

D). Y = 4x -6

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