Question

Find the slope of the line passing through the points (4,-7) and (4,2)

Answer 1

Our answer is: undefined

`\Large\textsl{Explanation}`

We are asked to find the slope through the following points:

(4,-7) and (4,2)

Use the slope formula:

• 
  `\sf{m=\cfrac{y_2-y_1}{x_2-x_1}}`
• 
  `\sf{m=\cfrac{2-(-7)}{4-4}}`
• 
  `\sf{m=\cfrac{2+7}{0}}`
• 
  `\boxed{\boxed{\sf{m=unde fined}}}`

`\therefore` m = undefined

Answer 2

Answer: zero slope

Explanation:

2+7=9

4-4 =0

9/0 = zero slope