Direct & Inverse
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Anthony Clark
FREE Resource
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The width of a rectangle varies inversely with its length. If the width is 6 when the length is 24, give an equation that shows the relationship.
y = 4x
y = 144x
y = 4/x
y = 144/x
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Y is directly proportional to the square of z and inversely proportional to w.
y=kz2/w
y=kz/w
y=w/kz2
y=w/kz
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
y varies directly with the square of x. If y=40 when x=4, find y when x = 7
17.5
70
122.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a varies inversely as the square of b. If a is 1 when b is 3, find a when b is 5.
0.36
9
25
36
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
y varies directly as the square of x and indirectly with z. If y is 8 when x is 4 and z is 6, find y when x is 8 and z is 4.
3
12
48
64
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
y varies directly as x, if y=12 when x=5, find y when x=3
36/5
15/12
12/5
12/15
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
y varies inversely as x, if y = -3 when x = -6, find y when x = 14.
11
-11
9/7
7/9
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