Question

Line CD contains points A (4, -7) and B (4, 8). The slope of line CD is

Answer 1

\[ slope = \frac{ y_{2}-y _{1} }{ x _{2}-x _{1} }\]

Answer 2

Where your points are \[(x_1,y_1) ~~\text{and}~~(x_2,y_2)\]

Answer 3

I know the formula but have never had it asked this way

Answer 4

Select one:
a. zero
b. undefined
c. positive
d. negative

Answer 5

It would be 0/-15

Answer 6

Which means zero right?

Answer 7

@mathaphobia Heres another way to do it. so we take our two points right. and we subtract the y coordinates and the x coordinates in the same direction