Question

Find the slope of the line passing through the points (-9,9) and (3,9).

Find the slope of the line passing through the points
(-9,9) and (3,9)

Answer 1

This question has a slope of zero.

Explanation:

When trying to solve a problem like this, what I recommend doing is subtracting the y value in the first ordered pair from the y value in the second ordered pair, and doing the same for the x values. To write it as a formula,

y2 - y1

––––– = m the 2 in the formula means that the y or x value was from the

x2 - x1 second ordered pair. The 1 means it was from the first

ordered pair. The m means slope.

Answer 2

`\displaystyle m=0`

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

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

Explanation:

Step 1: Define

Point (-9, 9)

Point (3, 9)

Step 2: Find slope m

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

1. Substitute in points [Slope Formula]:
   `\displaystyle m=(9-9)/(3+9)`
2. [Fraction] Subtract/Add:
   `\displaystyle m=(0)/(12)`
3. [Fraction] Divide:
   `\displaystyle m=0`