Show:
Slope between
two points
Definitions
Solve for y
Intercepts
Direct Variations
100
Find the slope between these two points: (2, 4) and (6, 8).
What is 1?
100
State the slope-intercept form of a line.
What is y = mx + b?
100
Solve for y: x + y = 0
What is y = -x?
100
Find the x-intercept: -x + 9y = 10
What is (-10, 0)?
100
Direct variations always go through this point.
What is the origin?
200
Find the slope between these two points: (-4, 3) and (-2, -7).
What is -5?
200
State the standard form of a line.
What is Ax + By = C?
200
Solve for y: -6x + y = 4
What is y = 6x + 4?
200
Find the y-intercept: y = -x + 4
What is (0, 4)?
200
True or False: Direct variations are in the form y = kx.
What is true?
300
Find the slope between these two points: (9, 4) and (9, -3).
What is undefined?
300
State the general form of a direct variation.
What is y = kx?
300
Solve for y: 4x - y = -2
What is y = 4x + 2?
300
Find the x-intercept: -4x + 5y = 20
What is (-5, 0)?
300
True or false: The following is a direct variation: 6x - 7y = 42
What is false?
400
Find the value of r so the line passing through (5, 2) and (-7, r) has a slope of 5/6.
What is r = -8?
400
The rate of change is also known as this.
What is slope?
400
Solve for y: -5x - 10y = 20
What is y = -1/2x - 2?
400
Find the y-intercept: 3x - 7y = 0
What is (0, 0)?
400
If a gallon of gas costs $3.35, the constant of variation would be this number.
What is 3.35?
500
Find the value of r so the line passing through (-4, r) and (-8, 3) has a slope of -5.
What is r = -17?
500
The point (-4, -9) would be found in this quadrant.
What is quadrant three?
500
Solve for y: 3x + 5y = 8
What is y = -3/5x + 8/5?
500
Find the y-intercept: 3x - y = 9
What is (0, -9)?
500
If John makes $9 per hour, in the equation y = 9x, x would represent this.
What is number of hours?