SOLUTION: write an equation for a line that contains (1,5) and is parallel to 2x+y=-1. write an equation for a line that contains (1,5) and is perpendicular to 2x+y=-1

Algebra ->  Linear-equations -> SOLUTION: write an equation for a line that contains (1,5) and is parallel to 2x+y=-1. write an equation for a line that contains (1,5) and is perpendicular to 2x+y=-1       Log On


   



Question 75134: write an equation for a line that contains (1,5) and is parallel to 2x+y=-1.
write an equation for a line that contains (1,5) and is perpendicular to
2x+y=-1

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the given equation has a slope of -2,,a line parallel to this will have the same slope,,a line perpendicular to this will have a slope that is the negative reciprocal of -2..or 1/2

the equation of a line containing (1,5) with a slope of -2 is %28y-5%29=-2%28x-1%29

the equation of a line containing (1,5) with a slope of 1/2 is %28y-5%29=%281%2F2%29%28x-1%29