Question

What is the slope formula of (-9,15) and (-9,-8) ?​

Answer 1

m = undefined

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Algebra I

• Slope Formula:
  `\displaystyle m=(y_2-y_1)/(x_2-x_1)`

Explanation:

Step 1: Define

Point (-9, 15)

Point (-9, -8)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

1. Substitute in points [SF]:
   `\displaystyle m=(-8-15)/(-9+9)`
2. [Fraction] Subtract/Add:
   `\displaystyle m=(-23)/(0)`

Here we see that our slope would be undefined since we cannot divide anything by 0.