AnswersHCISD-Mathematical Models with Applications B-CR SUMMERFinding a Constant of Proportionality

Equations of Proportional Relationships Answers

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Which ordered pair would form a proportional relationship with the point graphed below?

Question illustration
A
(10, 10)
B
(25, 35)
C
(70, 50)
D
(90, 60)
2
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Which graph of ordered pairs shows a proportional relationship?

A
On a coordinate plane, points (1, negative 2) and (2, negative 4) are plotted.
Option A
B
On a coordinate plane, points (negative 2, negative 2) and (1, 3) are plotted.
Option B
C
On a coordinate plane, points (negative 2, 1) and (1, negative 2) are plotted.
Option C
D
On a coordinate plane, points (2, 1) and (4, 3) are plotted.
Option D
3

A package states that there are 60 calories in 12 crackers and 75 calories in 15 crackers. Since the relationship is proportional, how many calories are there in 180 crackers?xy12601575

A
36 calories
B
108 calories
C
720 calories
D
900 calories
4

Which graph represents a proportional relationship?

A
On a coordinate plane, a line crosses the y-axis at (0, 2).
Option A
B
On a coordinate plane, a line crosses the y-axis at (0, 2).
Option B
C
On a coordinate plane, a curved line curves at (0, 0).
Option C
D
On a coordinate plane, a line crosses the y-axis at (0, 0).
Option D
5

Which graph represents a proportional relationship?

A
On a coordinate plane, a straight line crosses the y-axis at (0, 0).
Option A
B
On a coordinate plane, a straight line crosses the y-axis at (0, negative 2).
Option B
C
On a coordinate plane, a straight line crosses the y-axis at (0, negative 3).
Option C
D
On a coordinate plane, a straight line crosses the y-axis at (0, 3).
Option D
6

Which table of ordered pairs represents a proportional relationship?

A
A 2-column table with 3 rows. Column 1 is labeled x with entries 4, 7, 10. Column 2 is labeled y with entries 8, 11, 14.
Option A
B
A 2-column table with 3 rows. Column 1 is labeled x with entries 5, 7, 9. Column 2 is labeled y with entries 25, 49, 81.
Option B
C
A 2-column table with 3 rows. Column 1 is labeled x with entries 6, 10, 14. Column 2 is labeled y with entries 3, 5, 7.
Option C
D
A 2-column table with 3 rows. Column 1 is labeled x with entries 3, 8, 13. Column 2 is labeled y with entries 6, 11, 18.
Option D
7

Which ordered pair would form a proportional relationship with the point graphed below?

Question illustration
A
(–40, 20)
B
(–10, –20)
C
(15, –30)
D
(5, –15)
8

Which ordered pair would form a proportional relationship with the point graphed below?

Question illustration
A
(40, 10)
B
(–5, –10)
C
(5, 20)
D
(–10, –20)
9

If the relationship is proportional, what is the missing value from the table?xy8616?2418

A
8
B
9
C
12
D
14
10

Four puzzles that were manufactured contained a total of 420 pieces. The next 6 puzzles contained a total of 630 pieces. If the relationship between the number of puzzles and the total number of puzzle pieces continues to be proportional, which could be the missing entries in the table?Number of Puzzles(x)Number of Pieces(y)44206630

A
8 puzzles and 800 pieces
B
8 puzzles and 840 pieces
C
10 puzzles and 1,000 pieces
D
10 puzzles and 1,200 pieces

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