Question

What is the slope of the line through the points (2/3,4/7) and (2/3,11/7) ? anwser choices 1,0,undefined,or 2/3?????? I have been on this for a hour helpppp

Answer 1

slope is (y2-y1)/(x2-x1).
Pick either ordered pair to be the x1,y1. The other is the x2,y2.
so (11/7 - 4/7) is 7/7 or 1. that goes on the top as the change in y. Then take the x's. (2/3 - 2/3) or zero. That goes on the bottom. The answer is 1/0. You cannot divide by zero. In slopes this means a vertical line. it is undefined as a number and a vertical line graphically.