Answer:
The slope is undefined.
Hence, option C is true.
Explanation:
The graph represents a vertical line.
We know that the slope of a vertical line is undefined.
Verification:
Taking two points
(0, -2)
(0, -4)
Finding the slope between (0, -2) and (0, -4)
slope = m = y₂-y₁ / x₂-x₁
= [(-4-(-2))] / [(0-0) ]
= [-4+2] / 0
= -2 / 0
= ∞
Thus, the slope is undefined.
Hence, option C is true.