Finding Slope
Find slope, m, at (6, 5) and (5,4).
Write an equation in slope-intercept form: (5, -1); slope = 1/5
What is y = 1/5x - 2?
Graph y = -4/5x + 3.
Check student whiteboards for (5,-1) and (0,3).
Graph:
3x + 7y = 21
Look for (7,0) and (0,3)
Find slope, m, at (3,1) and (8,4).
What is 3/5?
Write an equation in slope-intercept form: (5,2); slope = 2
What is y = 2x - 8?
Graph y = 2x - 1.
Check student whiteboards for (0,-2), (1,1), (2,2), or (-1, -3).
Graph
4x - 7y = -28
Look for (-7,0) and (0,4)
Find slope, m, at (1,1) and (6,10).
What is 9/5?
Write an equation in slope-intercept form: (4, 5) and (-2, 8)
What is y = -1/2 x + 7?
Graph y = -2x + 3
Check student whiteboards for (0,3), (1,1), (2, -1), or (3,-3).
11x - 22y = -44
Look for (-4,0) and (0,2)
Find slope, m, at (2,5) and (3,9).
What is 4?
Write an equation in slope-intercept form: (-1, 1) and (-4,4)
What is y = -1x or -x?
Graph y = -3/4x + 3
Check student whiteboards for (0,3) and (4,0).
Write the equation in slope-intercept form.
-5x + 4y = 20
y=5/4x+5
Find slope, m, at (-3,6) and (-3,4).
What is undefined? (cannot divide by 0)
Write an equation in slope-intercept form: (3,7) and (-3, 3)?
What is y = 2/3x + 5?
Graph y = 3x + 2
Check student whiteboards for (0,2), (1,5), (2,8), (-1,-1), or (-2,-4).
Write the equation in slope-intercept form.
10x + 3y = -7
y=10/3x-7/3