Question

Which of the following will give you the incorrect slope?

the quantity y subscript two minus y subscript one over the quantity x subscript two minus x subscript one

the quantity y subscript two minus y subscript one over the quantity x subscript one minus x subscript two

the quantity y subscript one minus y subscript two over the quantity x subscript one minus x subscript two

rise over run

Answer 1

Do you have a guess?
Most people know the slope formula as (y2 -y1) / (x2 - x1)

Answer 2

What would happen to the standard slope formula, (y2 -y1) / (x2 - x1), if you multiply it by
-1 / -1 (which is the same as multiplying by 1) ???