Question

Find the slope of line passing through the points (5, 9) and (5, -2)

A. 11
B. 0
C. -11
D. undefined

Answer 1

because the first numbers in both or the data sets (both the fives) that means that it is just a straight line running horizontal, or left to right

Answer 2

So b.?

Answer 3

that means the slope is 0. i learned a little trick back in grade school. if it runs side to side its 0, and if it runs up and down its undefined. my teacher said it was like a heart monitor. when its running straight side to side theres no heartbeat, so its 0. when its running up and down, that never happens in a heart monitor so thats unusual and undefined. just a little trick haha