What is the equation of a vertical line that has an x-intercept of 7? user: what is the equation of a horizontal line that has a y-intercept of 3? user: what is the equation of the line with a slope of that goes through the point (4, 1) in slope-intercept form?

-- a vertical line that has an x-intercept of 7 . . . . .  X = 7

-- a horizontal line that has a y-intercept of 3 . . . . .  Y = 3

-- the line with a slope of that goes through the point (4, 1) . . . . .
                                                             can't be answered;  the slope is not given.

X= -5because this is a single step equation so you would just have to divide -16 both sides for x to equal your solution