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sineoko [7]
3 years ago
12

Brainlist for correct answer and 25 points for answering! Write the equation of a line that is perpendicular to y=0.25x-7 and th

at passes through the point (-6,8).

Mathematics
1 answer:
MAXImum [283]3 years ago
3 0
I’m pretty sure it’s y=-4x-16

Because the standard slope equation is y=mx+b and in perpendicular lines the slope is opposite of the slope on a parallel line. 0.25 is equal to 1/4 and the opposite of 1/4 is 4/1 but you also make it negative so it’s -4. So we have y=-4x+b and you plug in the coordinates and solve [8=-4(-6)+b and -4*-6=24 so you rewrite it as 8=24+b and 8-24=-16 and -16=b] so you plug in b and the equation is y=-4x-16

Hope this helped
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Step-by-step explanation:

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Now we take to pairs and eliminate the same var.:

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and

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We get:

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and

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We now know x = 1, so z is:

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Let’s grab the first formula and find y:

6+2y-12=-2

6+2y=10

2y=4

y = 2

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