Question 268969
Since the lines are parallel then that means that their slopes are equal, -3/4. The slope-intercept equation is y = mx + b and we know the slope already and we are given a point on the line (5, -1). So, simply plug in the numbers and find b. 
-1 = -3/4 (5) + b

-1 = -15/4 + b

-1 / -15/4 = -15/4 / -15/4 + b

-1 / -15/4 = b

-1 * -4/15 = b

4/15 = b

so the slope - intercept of an equation with a slope of -3/4 and passes thru point (5, -1) is y = -3/4x + 4/15