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

Answer:

Line M is a vertical line with an undefined slope

Line M is a horizontal line with a slope of zero

both are true

Step-by-step explanation:

slope of m= (9-9)/(-1-(-5))=0

so it vertical with an undefinded slope and horizontal line with zero slope.

Answer 2

Line M is a horizontal line with a slope of zero.

Step-by-step explanation:

Given that (-5,9) and (-1,9) are the points through which line-M passes.

Therefore, the slope of line-M will be

= $\frac{9 - 9}{- 5 + 1}$

= 0

Therefore, line-M is a horizontal line with a slope of zero.

This is because the slope of all the horizontal lines on a coordinate plane i.e. parallel to x-axis will have slope zero i.e. they make 0° angle with the x-axis. (Answer)