Question

Which of the following will give you the incorrect slope?

Answer 1

A.) \[\frac{ y _{2} - y _{1}}{ x _{2} - x _{1}}\]
B.) \[\frac{ y _{2} - y _{1}}{ x _{1} - x _{2}}\]
C.) \[\frac{ y _{1} - y _{2}}{ x _{1} - x _{2}}\]
D.) \[\frac{rise}{run}\]

I know A, and D are the same, and that they're the formula for Slope, but B and C are just a little different. I think the answer is B, but I'm not sure.

Answer 2

b will give you incorrect slope.

Answer 3

Okay, but why won't C? @Akandel

Answer 4

the slope is equal to the difference in y over the difference in x (aka, rise over run)

as long as you subtract in the same order, it doesn't matter if you do y1-y2 or y2-y1

Answer 5

if you pick y2-y1, then you have to use x2 - x1

or if you use y1 - y2, then you have to use x1-x2

Answer 6

B is your answer

Answer 7

C is just taking negative common from top and taking negative common from buttom of A and the negative cancels to become postive then you end up getting C so C is also true.

Answer 8

Okay, than you both.