Which equation represents a horizontal line?
x=y+2

X-2

y = x+1

y=2

y=2

Step-by-step explanation:

A horizontal line can be represented as y = a number.

Therefore D. y=2 is a horizontal line.

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x