Question

Can someone help me pls?

Answer 1

Graph c.
Slope=rise/run
A straight line has no rise but has run. 0 divided by anything is zero.
Slope=rate of change up and down (y axis)
A straight line doesn't change at all.
Slope=how hard it is to walk on
A straight line is very easy to walk on. But a vertical line is impossible, so it's slope doesn't even exist.

Answer 2

graph c

Explanation:

there is no slope since it doesn't go up/down by anything or over by anything. meaning there is no increase or decrease.