Module 5 Test Review
Authored by Larayza Collins
Mathematics
7th Grade
CCSS covered
Used 5+ times
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24 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which of the following is linear?
8x-1
9x^2
1/x
7xy
Answer explanation
When a function is linear:
It only has ONE variable.
The variable can NOT be in the denominator or have an exponent.
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the GCF of 16m and 40mn?
4m
8m
8mn
4mn
Answer explanation
When you're looking for the Greatest Common Factor, find the variable and the BIGGEST number they have in common!
16m 40mn
1 x 16 1 x 40
2 x 8 2 x 20
4 x 4 4 x 10
5 x 8
They both have an "m", and the biggest common number is 8.
So, the GCF is 8m
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the GCF of 20x and 25x?
2
2x
5
5x
Answer explanation
When you are looking for the Greatest Common Factor,
look for a variable and the biggest number they have in common!
4.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
The GCF of
1/3 x + 1/3
is
Answer explanation
1/3 x + 1/3
Both the Variable and the Constant has "1/3",
so the GCF is 1/3!
**Even when the numbers are fractions, the same rules apply!
Look at 5x + 5
Both have a "5",
so, the GCF is 5!
Tags
CCSS.7.EE.A.1
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
How would we rewrite -(-6x-1)
-6x+1
6x-1
-6x-1
6x+1
Answer explanation
Every time you see a negative/subtraction sign in front of a parenthesis,
you change all the signs to the OPPOSITE:
-(-6x-1) ------> -1(-6x-1)
-1 x -6 = 6x
-1 x -1 = 1
So, we get 6x + 1
Tags
CCSS.7.EE.A.1
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Simplify:
(-5x - 9) - (-6x - 1)
-x - 8
-11x - 10
x - 8
x - 10
Answer explanation
(-5x - 9) - (-6x - 1)
1. Get rid of the subtraction
-(-6x - 1) -----Find the Opposite!
+ 6x + 1
2. Rewrite the expression // Get rid of parenthesis:
-5x - 9 + 6x + 1
3. Combine like terms:
6x - 5x= -9 + 1=
1x or x -8
4. Write the new expression:
x - 8
Tags
CCSS.7.EE.A.1
7.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Factor:
10xy - 15y
Answer explanation
Factor:
10xy - 15y
1 x 10 1 x 15
2 x 5 3 x 5
Both have a 5, Both have a "y"
5y ( 2x - 3 )
Tags
CCSS.7.EE.A.1
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