What slope does a horizontal line have? use a number to fill in the blank.

A horizontal line has a slope equal to

Step-by-step explanation:

we know that

The lines parallel to the x-axis has a slope equal to

The lines parallel to the x-axis are horizontal lines

therefore

A horizontal line has a slope equal to

step-by-step explanation:

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions