WorksheetsDirect Variation Test
Total questions: 120
Worksheet time: 4hrs 14mins
Find the value of y when x = 2.
The amount of money earned on a job is directly proportional to the number of hours worked. if $36 is earned for 8 hours of work, how much is earned for 30 hours of work?
135
6.667
1080
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B
C
D
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y=2x
y = 7x + 3
Direct variation is X over Y.
True
False, because its Y over X.
(6,7) and (4,2)
(2, 4) and (6, 12)
(10, 1) and (5, 2)
What is the slope represented in the table?
slope: 21
slope: 2
slope: −21
slope: −2
What is the Slope represented in this table?
slope: −41
slope: −4
slope: 41
slope: 4
Negative
A line that has a slope of m = 0 is
Horizontal
Vertical
really steep
not so steep
The y intercept is AWESOME! It helps us to know...
Where our line will end.
If our line is positive or negative.
Where to start graphing our line.
When graphing, what do you do after you graph your y-intercept?
Find slope and start with your run(left or right) then to rise (up or down)
Find slope and start with your rise (up or down) then to run (left or right)
Draw a vertical line
Draw a horizontal line
Which could be the graph of the equation y = 1/3x - 2?
Which graph best represents the equation y = -3x + 4?
Which is the graph of the equation y = -2x + 1?
Which graph represents y = 3x?
Which is the graph of the equation ?
y=31x − 2Which is the graph of the equation ?
y = −2x + 1Which is the graph of the equation ?
y = −x + 2A
B
C
D
What does the b represent in y=mx+b ?
slope
y-intercept
What does the 4 represent in y=4x+3 ?
slope
y-intercept
What does the 3 represent in y=4x+3 ?
slope
y-intercept
What does 10 represent in y=6x+10 ?
slope
y-intercept
What does 6 represent in y=6x+10 ?
slope
y-intercept
What is the slope of the line that passes through these two points (0, -2) and (3, -4)?
2/3
-2/3
3
-2
What is the slope of the line that passes through these two points (8, 4) and (5, 3)?
3
-1
-1/3
1/3
What is the equation by looking at this graph?
y= x + 3
y= -x + 2
y= 2x + 2
y= x + 2
(-4, 3) and (-4, -7)
6x - y = 1
5x - 4y = -20
Solve this equation for y:
−6x+3y=9
y = 2x + 9
y = 6x - 3
y = 2x + 3
y = 6x + 9
When converting the equation
2x + 4y = 8
into slope-intercept form, the first step to solve for y would be to ____________.
subtract 2x from each side
subtract 4y from each side
add 2x to each side
add 4y to each side
What is the correct slope-intercept form?
y = mx + b
y = mb + x
y = x
y = -mx + b
Does the following represents direct variation?
Yes
No
Does the following represents direct variation?
Yes
No
Does the following represents direct variation?
Yes
No
Does the following represents direct variation?
Yes
No
Select all the equations that represent a direct variation:
Does the following table represent direct variation?
Yes
No
Does the following table represent direct variation?
Yes
No
Does the following table represent direct variation?
Yes
No
Does the following table represent direct variation?
Yes
No
The value of y is directly proportional to the value of x.
If y = 132 when x = 11, what is the value of y when x = 17?
y = 144
y = 12
y = 204
y = 71
The value of y varies directly with x. If x = 195 when y = 15, what is the value of x when y = 9?
y = 1.44
y = 117
y = 12
y = 135
The number of pages that Hayden can read varies directly with the time spent reading.
If he reads 12 pages in 4 minutes, how many pages can he read in 17 minutes?
51 pages
47 pages
60 pages
75 pages
The number of miles Jim runs is directly proportional to the time spent running.
If he runs 6 miles in 46.8 minutes, how long will it take him to run 13.1 miles?
92.35 minutes
7.8 minutes
102.18 minutes
150.67 minutes
The mass of a substance varies directly with the volume of the substance. The volume of 100 kilograms of the substance is 80 liters.
What is the volume, in liters, of 3.2 kilograms of this substance?
2.12 cubic liters
4 cubic liters
6.34 cubic liters
2.56 cubic liters
Find the value of y when x = 2.
y=2x
y varies directly with x. If y = 20 when x = 4, what is y when x = -2 ?
-10
10
-5
5
y varies directly with x. If y = 12 when x = 2, what is the constant of variation?
k = 12
k = 4
k = 6
k = 2
y varies directly with x. If y = -4 when x = -1, what is the constant of variation?
k = 12
k = 4
k = 6
k = 2
Find the unit rate: $6.20 for 5 pounds of lemons. How much does it cost for 3 pounds of lemons?
$3.72
$1.24
$1.84
$3.00
The amount of money earned on a job is directly proportional to the number of hours worked. If $240 is earned in 16 hours, how much money is earned in a 40-hour work week?
$480
$600
$15
$265
Which of the given graphs is a direct variation?
A
B
C
D
The amount of money earned on a job is directly proportional to the number of hours worked. If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?
$2
$308
$1.57
$265
What is the slope of the line that passes through the points (-2, 5) and (1,4)
(a)