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10 votes
10 votes
Write the equation of the line that is perpendicular to y = 2x + 17 and contains the point (8-1).​

User MojoTosh
by
2.5k points

1 Answer

12 votes
12 votes

Answer:

y= -1/2x + 3

Explanation:

A line that would be perpendicular to y=2x+17, means that the line has a negative reciprocal slope. So because the slope is 2 in the original equation, -1/2 would be the slope of the new line

so now, plug in the point (8, -1) into the point-slope formula

y-y1=m(x-x1)

y1= -1

x1= 8

m= -1/2

So,

y- -1= -1/2(x-8)

y+1=-1/2x + 4

Subtract 1 from both sides

y=-1/2x+3

User WQYeo
by
3.0k points
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