Question

Choose the equation of the line passing through the point (-2, 4) and perpendicular to y = -x + 4.

Answer 1

since product of slopes of perpendicular lines is -1,
the line perpendicular to y = -x + 4 will have a slope of "1"

slope = 1
point : (-2, 4)

equation of line with slope "m" & passing throug (x1, y1) is :
y-y1 = m(x-x1)
plugin (x1, y1) and m = 1

y - 4 = 1(x+2)

can you simplify further ?

Answer 2

ganeshie8 i mad a mistake its y = -1/2x + 4

Answer 3

ok np :) can u tell slope of this line ?

Answer 4

no

Answer 5

ok. here is the clue :
for line y = mx + c, slope = m
for y = -1/2x + 4, slope = ?