Find the equation of a line that passes through the point (4,15) and is perpendicular to the equation below.

1 answer:

8 0

The answer is D because to find the slope of a line that is perpendicular to another, you have to find the opposite reciprocal. so here the slope would be -1/4. now, take that slope and put it into an equation. like the following:
$y = \frac{ - 1}{4} x + b$
now to find b you must insert the points into the equation (plug in 4 for x, and 15 for y).
$15 = \frac{ - 1}{4} (4) + b$
b then equals 16. so, the answer is D.

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