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20 questions
y=−52x
What type of variation?
Direct
Inverse
Neither
xy=40
What type of variation?
Direct
Inverse
Neither
8x−2y=2
What type of variation?
Direct
Inverse
Neither
3y=x
What type of variation?
Direct
Inverse
Neither
What type of variation?
Direct
Inverse
Neither
What type of variation?
Direct
Inverse
Neither
What type of variation?
Direct
Inverse
Neither
What type of variation?
Direct
Inverse
Neither
What type of variation?
Direct
Inverse
Neither
What type of variation?
Direct
Inverse
Neither
If y varies directly as x, and the constant of variation is −3 , which equation represents this relationship?
y=−3x
y=3x
y=−x3
y=−3x
If the point (2, −10) lies on the graph of an inverse variation, which represents the inverse variation equation?
y=−20x
y=−5x
y=−x20
y=−x5
If the point (12, 4) lies on the graph of a direct variation, what is the constant of variation?
8
31
3
48
The point shown is an element of a direct variation. What are two other points that are also elements of this direct variation?
(5,−2)
(−2,5)
(0,−5)
(0,5)
(0,0)
A relation is shown in the table.
Which statement about this relation is true?
It is a direct variation, because xy=24 .
It is an inverse variation, because xy=24 .
It is a direct variation, because y=23x .
It is an inverse variation, because y=23x .
Two relationships are described:
Relationship A: John walked 6 miles in 2 hours, then he walked 12 miles in 4 hours.
Relationship B: Adam baked 200 cookies in 2 hours, then he baked 500 cookies in 3 hours.
Which statement is true about these relationships?
Neither relationship is a direct variation.
Both relationships are direct variations.
Only Relationship A is a direct variation.
Only Relationship B is a direct variation.
The point shown is an element of a direct variation. What are two other points that are also elements of this direct variation?
(6, −8)
(8,6)
(0,0)
(−8,6)
(3,4)
Translate the statement below into an algebraic expression:
One less than the square of a number
1−x2
x2−1
(x−1)2
2x−1
Simplify the following expression:
2m2−16−4m+5m2−12+4m
7m2+8m−28
7m4−28
7m2−28
7m2−4
What is the solution to x+5(x+4)≥6x−2(x+5) ?
−15≤x
−15≥x
−15>x
−15<x
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