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

Question

ganeshie8 · Answer

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 ?

anonymous · Answer

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

ganeshie8 · Answer

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

anonymous · Answer

no

ganeshie8 · Answer

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