Question

1 (-2,2) Write the equation, in point-slope form, of the line that is perpendicular to the given line and passes through the point (-2, 2). * (4 Points)​

Answer 1

y = -5x - 8

Explanation:

Take the points (-5,-4) and (0,-3) plug them into this formula to get the slope.

`(y2 - y1 )/(x2 - x1)`

Now plug in your points

`(-3 - (-4))/(0 - (-5)) \\\\(1)/(5)`

Since you're slope is 1/5 the slope of the perpendicular line is going to be the totally opposite -5 is the slope of the perpendicular line.

Now plug in -5 and the point (-2,2) into y = mx + b to get the y-intercept

2 = -5(-2) + b (b represents the y-intercept)

2 = 10 + b (subtract 10 from both sides)

-8 = b

The perpendicular line looks like this y = -5x - 8

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