Question 676950
2x + y = C


2(-4) + (-5) = C


-8 - 5 = C


-13 = C


C = -13


So the equation of the parallel line in standard form is 2x + y = -13


If you want the equation of the parallel line in slope intercept form, then solve for y to get


2x + y = -13


y = - 2x - 13