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I need help with this please!!!!

I need help with this please!!!!-example-1
User Lukash
by
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1 Answer

4 votes

Answer:

choice A

Explanation:

According to the graph, we have

W(-2,1)

X(1,4)

Y (4,1)

Slope m = (y2 - y1)/(x2 - x1)

Slope of WX: m(wx) = (4 -1)/(1 - (-2)

Slope of XY: m(xy) = (1-4)/(4-1)

The slopes of two perpendicular lines are negative reciprocals of each other. This means that their product is -1.

(4 -1)/(1 - (-2) x (1-4)/(4-1) = -1

So choice A is the correct answer.

User BladeWise
by
7.2k points