WorksheetsAlg 2 - 8-1
Total questions: 10
Worksheet time: 30mins
Name
Class
Date
1.
The ordered pair (3.5, 1.2) is from an inverse variation. What is the constant of variation?
a)
2.3
b)
2.9
c)
4.2
d)
4.7
2.
Suppose x and y vary inversely, and x = 4 when y = 9. Which function models the inverse variation?
a)
y = 36/x
b)
x = y/36
c)
y = x/36
d)
x/y = 36
3.
Suppose x and y vary inversely, and x = -3 when y = 1/3. What is the value of y when x = 9?
a)
-9
b)
-1
c)
-1/9
d)
1/9
4.
In which function does t vary jointly with q and r and inversely with s?
a)
t = kq/rs
b)
t = ks/qr
c)
t = s/kqr
d)
t = kqr/s
5.
Y is directly proportional to the square of z and inversely proportional to w and x
a)
y=kz2/wx
b)
y=kz/wx
c)
y=wx/kx2
d)
y=wx/kz
6.
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
7.
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?
a)
50 kg water
b)
72 kg water
c)
94 kg water
d)
150 kg water
8.
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
9.
Is the given table a direct variation? If so, what is the constant?
a)
Yes; 1/4
b)
Yes; 4
c)
Yes; 2
d)
No
10.
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
100 %
