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11Alexandr11 [23.1K]
3 years ago
9

Write a the equation of a line perpendicular to the line y=-7 and goes through the point (-2,3)

Mathematics
1 answer:
kap26 [50]3 years ago
6 0

Answer:

y = 3x + 2

Step-by-step explanation:

Convert the equation to slope intercept form to get y = –1/3x + 2.  The old slope is –1/3 and the new slope is 3.  Perpendicular slopes must be opposite reciprocals of each other:  m1 * m2 = –1

With the new slope, use the slope intercept form and the point to calculate the intercept: y = mx + b or 5 = 3(1) + b, so b = 2

So y = 3x + 2

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