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Direct Variation
All about lines
Calculations
Function Form
Hodge Podge
100
Find the constant of variation. If y varies directly with x and y = 15 when x = 25.
What is 2/5
100
Find the slope of the line through the points (-4, 8) and (-3, -1)
What is -9/7
100
Is (4, 2) a solution of y = 3x - 10
What is yes
100
Rewrite in function form: -2x+y=10
What is y=2x+10
100
What is the 7th word of the Maine East school song?
What is begin?
200
Find the equationof variation. If y varies directly with x and y = 64 when x = 16.
What is y=4x
200
Find the slope of the line y = -4x +8
What is -4
200
Is (-2, 3) a solution of y = 4x + 10
What is no
200
Rewrite in function form -3x+2y=-12
What is y=(3/2)x-6
200
What word is spelled wrong in every dictionary?
What is w-r-o-n-g
300
Find the equation of variation. If y varies directly with x and y = 2 when x = 6.
What is y=(1/3)x
300
Find the y-intercept of the line 3x - 2y = -6
What is 3
300
f(x)=5x-4. Find f(3)
What is 11
300
Rewrite in function form: 8x-4y=-28
What is y=2x+7
300
Find the x-intercept and the y-intercept of the line 3x-5y=-30
What is x-intercept = -10 y - intercept = 6
400
If y varies directly with x and y = 25 when x = 20. Find x when y = 2.
What is 8/5
400
Does the line y=-3x + 8 rise, fall, horizontal, or vertical
What is fall
400
f(x)=-7x+10. Find f(-1)
What is 17
400
Rewrite in function form. Find the slope and y-intercept. -5x-10y=15
What is y=(-1/2)x-(3/2) m = -1/2 b = -3/2
400
Is the graph of the line 3y-9x=0 rising, falling, vertical, or horizontal?
What is rising
500
The graph of a direct variation line always passes through this point.
What is the origin
500
Find the y-intercept of the line 8y = 2x.
What is 0
500
Find the slope of the line through the points (8, -100) and (8, 129)
What is undefined
500
Rewrite in function form. Find the slope and y-intercept. 3y-2x=36
What is y=(2/3)x+12 m = 2/3 b = 12
500
What room number is the Math Office?
What is 208.