Direct Proportionality
Authored by Barbara White
Mathematics
7th Grade
CCSS covered
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22 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the value of k in the following equation? y = 2/7 x
4
-4
2/7
7
Tags
CCSS.6.EE.C.9
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
For an equation to be directly proportional, it must .......
pass thru two points
pass thru the origin
be positive
not have a fraction
Tags
CCSS.7.RP.A.2D
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Which equation is not an example of direct proportion?
y = x
y = 3x
y = - 6x
y = 2/3 x + 5
Tags
CCSS.7.RP.A.2C
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What means the same thing as direction proportion
x = y
direct variation
y = k + x
scale up proportion
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Y varies directly as x. If y = 39 when x = 52, what is the best answer for k?
k = 52
k = 4/3
k = 3/4
k = 39/52
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
If x = 9 when y = 30, and x = 27 when y = 90, does y vary directly with x? If so, what is k equal to
Yes, k = 10/3
no
Yes, k = 3/1
Yes, k = 9
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the direct proportion equation for the following information. x = 12, y = 16
16 = k(12)
y = kx
y = 4/3 x
k = 16/12
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