Question

What is the slope of the line through the points (2/3,4/7) and (2/3,11/7)

Answer 1

The formula of a slope:

`m=(y_2-y_1)/(x_2-x_1)`

We have:

`\left((2)/(3),\ (4)/(7)\right)\to x_1=(2)/(3),\ y_1=(4)/(7)\\\\\left((2)/(3),\ (11)/(7)\right)\to x_2=(2)/(3),\ y_2=(11)/(7)`

Substitute

`m=((11)/(7)-(4)/(7))/((2)/(3)-(2)/(3))=((7)/(7))/(0)\qquad\boxed{!!!!}`

Answer: The slope is not defined.