Question

so confused. help?
fan and medal (:
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).

y = 1 over 2x + 3 over 2

y = negative 1 over 2x + 3 over 2

y = 1 over 2x − 3 over 2

y = − 1 over 2x − 3 over 2

Answer 1

y = 1/2 x + c
-2 = -1/2 + c
c = -1/2
Equation is y = 1/2 x - 1/2

Answer 2

im confused ):

Answer 3

If a line is perpendicular to the other one whose slope k, in this case, is -2, the slope of the line is the negative inverse of k, -1/k.
So the line function is d=1/2*x+c;
Since it passes (−1, −2), substitute it into the function,
-2=-1/2+c. c=-3/2.
So the perpendicular line is d=1/2*x-3/2