SOLUTION: the equation of a straightline passing through the point (2,-7) and parallel to x axis is a)x=2 b)x=-7 c)y=-7 d)y=2 if the slope of the straight line ax+by+c=0 is -b/a, then

Algebra ->  Linear-equations -> SOLUTION: the equation of a straightline passing through the point (2,-7) and parallel to x axis is a)x=2 b)x=-7 c)y=-7 d)y=2 if the slope of the straight line ax+by+c=0 is -b/a, then      Log On


   

Question 896424: the equation of a straightline passing through the point (2,-7) and parallel to x axis is
a)x=2 b)x=-7 c)y=-7 d)y=2
if the slope of the straight line ax+by+c=0 is -b/a, then the slope of the line parallel to it is



















Answer by josgarithmetic(39627) About Me  (Show Source):
You can put this solution on YOUR website!
Slope is zero if parallel to the x-axis.
y value remains constant.

highlight%28y=-7%29

Using standard form, ax+by=c, you know that -a%2Fb=0 and this means a=0.
highlight%280%2Ax%2By=-7%29