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=$\frac{1}{2}$
$y=mx+c y= \frac{1}{2}x +c$
Replacing for x and y
-2=1/2*(-1)+c
c=-3/2
y=$\frac{x}{y} \frac{1}{2} x- \frac{3}{2}$