Question

Line M passes through the points (–5, 9) and (–1, 9). A coordinate plane. Which is true of line M? Line M is a vertical line with an undefined slope. Line M is a vertical line with a slope of zero. Line M is a horizontal line with an undefined slope. Line M is a horizontal line with a slope of zero.

Answer 1

option 4 because i looked it up

Answer 2

Option 4, Line M is a horizontal line with a slope of zero

Explanation: