How do you find the slope of a line perpendicular to y = 2 - 5xy=25x?

2 Answers
May 1, 2018

To find perpendicular gradient, m1 * m2 = -1m1m2=1

Explanation:

Remember that the slope of the line is known as gradient, and is often represented as mm

First rearrange the function into the gradient-intercept form y = mx+cy=mx+c:

y = 5x - 2y=5x2

Here we can see that the gradient of the function is 5, because m = 5m=5

Next use m1 * m2 = -1m1m2=1 , to find the perpendicular gradient.

5 * m2 = -15m2=1
(5 * m2)/5 = -1/55m25=15
m2 = -1/5m2=15, or -0.2.

The perpendicular gradient is -0.2

May 1, 2018

Slope of a line perpendicular to y= -5 x +2 y=5x+2 is 1/515

Explanation:

Slope of the line, y= -5 x +2 ; [y=m x+c]y=5x+2;[y=mx+c]

is m_1= -5m1=5 .The product of slopes of the perpendicular lines is

m_1*m_2=-1:.m_2=(-1)/m_1=(-1)/-5=1/5. Therefore, slope of

a line perpendicular to y= -5 x +2 is 1/5 [Ans]