Question

What’s the Slope of the Line Passing Through (2,5) And (-1,8)

Answer 1

`\displaystyle m=-1`

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 (2, 5)

Point (-1, 8)

Step 2: Find slope m

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

1. Substitute [SF]:
   `\displaystyle m=(8-5)/(-1-2)`
2. [Frac] Subtract:
   `\displaystyle m=(3)/(-3)`
3. [Frac] Divide:
   `\displaystyle m=-1`