Choose the equation of the horizontal line that passes through the part point (1,-5) a. y=-5 b x= 1 c y=1 d x = -5

We know is a horizontal line, so, if it passes through 1,-5, it also passes through "whatever", -5, like 20, -5 or 1000000, -5, or -100000000, -5 and so on.

so, let's pick another point say -7, -5, check the picture below, and let's check about the equation that runs through it,

The answer is the numbers between =5 and 5