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
2. Multiple Choice
1.5 minutes
1 pt
In a direct variation, y=39 when x=3. Find the value of y when x=2.
26
3
58.5
2
3. Multiple Choice
1.5 minutes
1 pt
Is this a direct variation? y=2x
yes
no
4. Multiple Choice
30 seconds
1 pt
Trina's paycheck earnings varies directly as the number of hours she works. If she works 19 hours and earns $187.15, what should she earn if she worked 40 hours?
$394
$440
$472.80
$512.20
5. Multiple Choice
30 seconds
1 pt
A person’s weekly pay is directly proportional to the number of hours worked. Shawn’s pay is $123.00 for 20 hours of work. Find the amount of pay for 31 hours of work.
$3813
$620
$190.65
$4.96
6. Multiple Choice
1.5 minutes
1 pt
Write an equation for this relationship.
y=4x
y=1/8x
y=1/4x
y=8x
7. Multiple Choice
30 seconds
1 pt
Which of the given graphs is a direct variation?
A
B
C
D
8. Multiple Choice
1.5 minutes
1 pt
Write an equation for this situation.
y=9.75x
y=19x
y=19.25x
y=9.5x
9. Multiple Choice
1.5 minutes
1 pt
Is this proportional?
yes
no
10. Multiple Choice
30 seconds
1 pt
Write the equation for the table given.
y = 1/3x
y = 3x
y = 1/2x
11. Multiple Choice
30 seconds
1 pt
The number of kilograms of water in a person’s body varies directly as the person’s mass. A person with a mass of 90 kg contains 60 kg of water. How many kilograms of water are in a person whose mass is 75 kg?
50 kg water
72 kg water
94 kg water
150 kg water
12. Multiple Choice
30 seconds
1 pt
What is the constant of proportionality (in miles per hour) based on the table?
45
90
135
2
13. Multiple Choice
30 seconds
1 pt
On a treasure map, the actual distance is directly related to the scaled distance. If 15 miles is represented by 3 centimeters, then how many centimeters on the treasure map are equivalent to 135 miles?
27 cm
675 cm
529 cm
32 cm
14. Multiple Choice
1.5 minutes
1 pt
The interest received on a savings account varies directly with the amount deposited. Daniel received $55.35 in interest on $1230 he deposited. How much interest would Daniel have received if he had deposited $2000 into his account?
34.04
90.00
1,285.35
44,444.44
15. Multiple Choice
30 seconds
1 pt
What is the slope?
$2/1 mile drive
$1/2 miles driven
2 miles driven/$1
1 mile driven/$2
16. Multiple Choice
30 seconds
1 pt
At what rate did the rain fall?
2 cm per hour
^{1}/_{4} cm per hour
^{1}/_{2} cm per hour
4 cm per hour
17. Multiple Choice
30 seconds
1 pt
What does the Direct Variation Equation look like?
y= kx
y = mx + b
y = b
y = x
18. Multiple Choice
30 seconds
1 pt
A tutoring job pays $222 for ten hours of work. If a tutor were to work for a total of thirty-five hours that week, how much will they make?