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Worksheets5.1 Inverse & Direct Variation
Total questions: 12
Worksheet time: 3600secs
Name
Class
Date
1.
Is the given table a direct variation? If so, what is the constant of variation?
a)
Yes; 1/3
b)
Yes; 3
c)
Yes; 5
d)
No
2.
Is the given table a direct or inverse variation? What is the constant of variation?
a)
Direct, 12
b)
Inverse, 12
c)
Direct, 1/12
d)
Inverse, 1/12
3.
The time it takes to fly from Los Angeles to New York varies inversely as the speed of the plane. If the trip takes 6 hours at 900 km/h, how long would it take at 800 km/h?
a)
5.33 hours
b)
6.75 hours
c)
12 hours
d)
10 hours
4.
The number of hours to paint a house varies inversely with the number of painters working. A 2400-square foot house can be painted in 27 hours by 6 painters. How many painters would need to work in order to paint the house in 18 hours?
a)
8 painters
b)
10 painters
c)
9 painters
d)
11 painters
5.
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?
a)
$394
b)
$443.25
c)
$472.80
d)
$512.20
6.
Which of the following represents indirect variation?
a)
y = kx
b)
y = k/x
c)
y = x/k
d)
y = mx + b
7.
Which of the following represents direct variation?
a)
y = kx
b)
y = k/x
c)
y = x/k
d)
y = mx + b
8.
Determine the type of variation:
a)
Direct
b)
Inverse
c)
Neither
9.
The equation
xy = 25 represents:
xy = 25 represents:
a)
direct variation
b)
inverse variation
c)
joint variation
d)
none of these
10.
The sales at a baseball game vary directly with the number of people attending. If sales for a game are $12,000 when 800 people attend, determine attendance if sales are $30,000
a)
1200 people
b)
1500 people
c)
2000 people
d)
2400 people
11.
The table represents
a)
direct variation
b)
inverse variation
c)
neither
d)
both
12.
What type of variation does this scenario represent?
You and some friends decide to buy 2 pizzas and split the cost evenly.
The number of friends who are sharing the cost of the pizzas
and the amount of money you pay for your share.
You and some friends decide to buy 2 pizzas and split the cost evenly.
The number of friends who are sharing the cost of the pizzas
and the amount of money you pay for your share.
a)
direct variation
b)
inverse variation
c)
joint variation
d)
none of these
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