Question

Tell wether the slope of the line is positive,negative,zero or undefined

A. Positive
B. Negative
C. Zero
D. Undefined

Answer 1

Undefined

Explanation:

Vertical lines will always have undefined slopes. This is a vertical line because it is straight up and down.

To make sure, we can test 2 points: (2,1) and (2,2) in the slope formula

y2-y1/x2-x1

2-1/2-2

1/0

It is impossible to divide by 0, so the slope is undefined.

Answer 2

D. Undefined

Explanation:

The line is a vertical line.

Vertical lines have undefined slopes