Try It
Practice Problem #1
Find the slope between the points (-4, 1), (0, -2)
Start by substituting in the values given.
Answer:-2 - 1/ 0 - -4
Answer: -3/-4
Practice Problem #2
Find the slope between the points (0, -2), (-3, -8)
Answer:-8 - -2/ -3 - 0
Answer: -6/-3
Simplify
m = ___
Answer: 2
Practice Problem #3
If you were teaveling from left to right on a line and you said you were going downhill would the slope be positive or negative.
Answer: negative; 
Practice Problem #4
Write the equation 3x + y = 8 in slope intercept form
What can you do to isolate the y variable?
- ____ + 3x + y = 8 - ___
Answer: 3x, 3x
Rearrange the right side of the equation so the x term is listed first.
y = ___ + ___
Answer: -3, 8
What is m?
Answer: -3
What are the coordinates of the y intercept?
Answer: 0, 8
Practice Problem #5
Write the equation -5x - 2y = 2 in slope intercept form
What can you do to isolate the y variable?
____ -5x - 2y = 2 + ___
Answer: 5x, 5x
Rearrange the right side of the equation so the x term is listed first.
-2y = ___
Answer: 5x + 2
We need to get the y term so that it has no coefficient. What should you do?
Answer: -2, -2
Answer: 5/2, 1
What is m?
Answer: -2.5
What are the coordinates of the y intercept?
Answer: 0, -1
