Question #0b00d

1 Answer
Apr 18, 2017

y+3=-2(x+1)
y=-2x-5

Explanation:

x-2y=-10

Isolate y to find slope intercept form:
-2y=-x-10

y=1/2x+5

Perpendicular lines have opposite reciprocal slopes, so the slope of the new perpendicular line would be frac{-1}{color(red)(m)} where color(red)(m) is the slope of the given line.

Original slope: 1/2
Perpendicular slope: -2

Equation of new line in point-slope form:
y+3=-2(x+1)
y=-2x-2-3
y=-2x-5