Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 3 - Review: 97a

Answer

$y-210,000=12,000(x-7)$

Work Step by Step

We know that if the slope of two lines are opposite reciprocals, they are perpendicular. Thus, we find the opposite reciprocal of the given line and plug in the given point into the point-slope equation for a line, which is: $$y_2-y_1=m(x_2-x_1)$$ We first find the slope: $$\frac{y_2-y_1}{x_2-x_1}$$ We use the given information as points to have: $$\frac{270,000-210,000}{12-7}$$ $$m =12,000$$ We then obtain: $$y-210,000=12,000(x-7)$$
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