Inverse Variations

Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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?
8 painters
10 painters
9 painters
11 painters
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The cost per person to rent a mountain cabin varies inversely to the number of people who share the rent. If the cost is $36 per person when 5 people share, what is the cost per person when 8 people share?
$22.50
$57.60
$4.50
$12.50
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the constant (k) in this inverse variation?
y = 400/x
x
y
400
Not enough information given
Tags
CCSS.HSF-LE.A.1B
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given that y varies inversely with x, if x =7 and y = 4, what is y when x = 2?
14
10
2
-14
5.
DROPDOWN QUESTION
1 min • 1 pt
An (a) takes a previously found result ( a y value) and returns it to its original value (x value). This means you are (b) a function
function
inverse
2 or more
undoing
Tags
CCSS.HSF-BF.B.4C
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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?
5.33 hours
6.75 hours
12 hours
10 hours
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following represents indirect variation?
y = kx
y = k/x
y = x/k
y = mx + b
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