Slope Formula

• 1. Label the Points 1 and 2 (Slope is ALWAYS the same, no matter which point you pick to be the “first” or “second”.)

• 2. Label the X and Y for each point

• 3. Write the values in the slope formula

• 4. Simplify

Find the slope of the line that goes through the points (5, 17) and (0,-3).

• First Point ------> (X₁, Y₁) = (5, 17)

• Second Point ------> (X₂, Y₂) = (0, -3)

• X₁ = 5 and Y₁ = 17

• X₂ = 0 and Y₂ = -3

-Remember that Y values go on top and X values go on bottom. 

-Make note of the MINUS in between each point for the top and bottom

-Don't mix the first (red) and second (blue) points. 

Solve for m using the Order of Operations (PEMDAS)

Make sure that you subtract the numbers correctly. Use a CALCULATOR!

**Remember- subtracting a negative number is the same as adding