Question

show that the line 4y=5x-10 is perpendicular to the line 5y+4x=35.​

Answer 1

Answer:

Solution:-

Given equations of lines are-

4y = 5x-10

or, y = (5/4)x - (5/2).  

5y + 4x = 35

or, y = (-4/5)x + 7. (ii)

Let m and n be the slope of equations i and ii, respectively.

Here, m = 5/4

n= -4/5

therefore, m× n = -1

Hence, the lines are perpendicular.

Step-by-step explanation: