Question

the equation of line wx is y = -2x - 5. write an equation of a line perpendicular to line wx in slope-intercept form that contains point (-1, -2)

Answer 1

Gradient of line 1 =-2
Gradient of a line perpendicular to this line;
m1*-2=-1
m1=
`(1)/(2)`

`y=mx+c y= (1)/(2)x +c`
Replacing for x and y
-2=1/2*(-1)+c
c=-3/2
y=
`(x)/(y) (1)/(2) x- (3)/(2)`