SOLUTION: 9. Find the slope of a line perpendicular to 2x – 5y = 3.

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Question 347156: 9. Find the slope of a line perpendicular to 2x – 5y = 3.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Hi,
*Note: The slope of a line and slope of a line perpendicular to it: are negative reciprocals
.
First find the slope of the line given:
Put it into a slope-intercept form of a line: y = m*x = b
(m being the slope ad b the y-inteccept)
.
2x – 5y =3
.
Solve for y
– 5*y = -2*x+ 3
y+=+%28-2%2F-5%29x%2B+%283%2F-5%29
y+=+%282%2F5%29x+-+3%2F5%29
m = 2/5
The slope of the line perpendicular to it is: m = -5/2