224k views
4 votes
Find an equation of the line perpendicular to the graph of 14x-7y=8 that passing through the point at (-2,5).

User Jpnurmi
by
4.5k points

2 Answers

0 votes

Answer:

2x + 4y = 16

Step-by-step explanation:

Follow the user's above.

User Purarue
by
4.5k points
3 votes

Answer:

2x + 4y = 16.

Step-by-step explanation:

14x - 7y = 8

Convert to slope-intercept form:

-7y = -14x + 8

y = 2x - 8/7

The slope is 2 so the line perpendicular to it has a slope of -1/2, so we have:

y = 1/2x + c

This line passes through the point (-2, 5) so:

5 = -1/2* (-2) + c

5 = 1 + c

c = 5 - 1 = 4

So our equation is y = -1/2x + 4.

Convert to standard from

4y = -2x + 16

2x + 4y = 16.

User Nathan Loudjani
by
4.8k points