Question

What is the equation of the line that passes through (2, 1) and is perpendicular to the graph of y = –x + 2?

Answer 1

perpendicular is m1 x m2 = -1
and from the equation given y=-x + 2 m1 can be found to be -1
m1=gradient of y=-x+2
m2=gradient of unknown equation we want to find.

-1 x m2 = -1
m2 = -1/-1
m2 = 1

use the find an equation of a line formula and we have to use the m2 found and point (2,1)
y – y1 = m(x – x1)
y - 1 = 1 (x-2)
y - 1 = x - 2
y = x -2 + 1
y = x -1

Answer 2

THANK YOU SOOO VERY MUCH

Answer 3

it's ok, medal thanks :P