Question

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Question 1(Multiple Choice Worth 2 points)
(Proportional Relationships MC)

Determine if the table shows a proportional relationship.


Time (hours) 0 6 12 18 24
Pay (dollars) 0 72 144 216 288
Yes, it is proportional because the ratios for dollars per hour are all equivalent to 12 dollars per hour.
Yes, it is proportional because the ratios for dollars per hour are all equivalent to 13 dollars per hour.
No, it is not proportional because 72 over 6 does not equal 216 over 18.
No, it is not proportional because 216 over 18 does not equal 288 over 24.
Question 2(Multiple Choice Worth 2 points)
(Proportional Relationships MC)

The graph of a proportional relationship is shown.

graph of a line beginning at point 0 comma 0 and continuing to the right going through points 5 comma 700 and 6 comma 840 and 7 comma 980

Create a table from the graph.


x 1 2 3
y 140 280 420

x 14 28 42
y 1 2 3

x 1 2 3
y 14 28 42

x 140 280 420
y 1 2 3
Question 3(Multiple Choice Worth 2 points)
(Proportional Relationships MC)

Three different recipes each make a different number of cookies and require a different amount of flour.

Recipe 1: 2 dozen cookies; 1.5 cups of flour
Recipe 2: 3 dozen cookies; 3 cups of flour
Recipe 3: 4 dozen cookies; 4.5 cups of flour

Determine if the three recipes use a proportional amount of flour.

Yes, it is proportional because the cookies increase by 1 dozen for every 1.5 cups of flour.
Yes, it is proportional because the ratios between the number of cookies and cups of flour are all equivalent.
No, it is not proportional because the number of cookies and cups of flour could not be zero at the same time.
No, it is not proportional because the ratios between the number of cookies and cups of flour are not all equivalent.
Question 4(Multiple Choice Worth 2 points)
(Proportional Relationships MC)

Determine if the table shows a proportional relationship.


x 36.5 23.2 63.3
y 18.25 11.6 21.1
Yes, it is proportional because the ratios for y over x are all equivalent to one half.
Yes, it is proportional because the ratios for y over x are all equivalent to one third.
No, it is not proportional because 18.25 over 36.5 is not equal to 23.2 over 11.6.
No, it is not proportional because 18.25 over 36.5 is not equal to 21.1 over 63.3.
Question 5(Multiple Choice Worth 2 points)
(Proportional Relationships LC)

Determine if the graph shows a proportional relationship.

Graph with x axis labeled distance miles and y axis labeled time hours. A line begins at point 0 comma 0 and continues to the right.

No, it is not proportional because the line does not intersect with the origin.
No, it is not proportional because the x-axis and y-axis are not labeled correctly.
Yes, it is proportional because it is a line that intersects with the origin.
Yes, it is proportional because the x-axis and y-axis are labeled correctly.
Question 6(Multiple Choice Worth 2 points)
(Proportional Relationships MC)

The table shows a proportional relationship.


Workout (hours) 1 2 3
Calories Burned 190 380 570


Create a description in words for the table.
The number of calories burned is dependent on the number of hours working out. For every 190-hour workout, there is 1 calorie burned, and for every 380-hour workout, there are 2 calories burned.
The number of calories burned is dependent on the number of hours working out. For a one-hour workout, there are 190 calories burned, and for a two-hour workout, there are 380 calories burned.
The number of hours working out is dependent on the number of calories burned. For every 190-hour workout, there is 1 calorie burned, and for every 380-hour workout, there are 2 calories burned.
The number of hours working out is dependent on the number of calories burned. For a one-hour workout, there are 190 calories burned, and for a two-hour workout, there are 380 calories burned.
Question 7(Multiple Choice Worth 2 points)
(Proportional Relationships MC)

A group of hikers tracked how long it took to hike a 15-mile trail. They hiked 3.5 miles in 2 hours, 8.75 miles in 5 hours, and 12.25 miles in 7 hours.

Determine if the relationship between the hikers' distance and time is proportional.

Yes, it is proportional because the ratios for miles per hour are all equivalent to 1.75 miles per hour.
Yes, it is proportional because the ratios for miles per hour are all equivalent to 0.6 miles per hour.
No, it is not proportional because 3.5 miles in 2 hours is not equivalent to 8.75 miles in 5 hours.
No, it is not proportional because 8.75 miles in 5 hours is not equivalent to 12.25 miles in 7 hours.

Answer 1

The relationship between the input and output variables in the given table of values are;

Question 1

Yes, it is proportional, because the ratio of Dollar per hour are all equivalent to 12 dollar per hour

Question 2;

x; 1, 2, 3, 4, 5

y; 140, 280, 420, 560

Question 3

No it is not proportional because the ratio between the number of cookies, and the cups of flour are not equivalent

Question 4

No, it is not proportional because 18.26/36.5 ≠ 21.1/63.3

Question 5

Yes, it is a proportional relationship because it is a line that intersects with the origin

Question 6

The number of calories burned is dependent on the number of hours worked out. For a one–hour work out, 190 calories are burned, and for a two–hours work out, there are 380 calories burned

Question 7

Yes because the ratio of the miles per hour are all equivalent to 1.75

What is a proportional relationship?

A proportional relationship is one in which the input and output have a constant ratio, and in which the graph passes through the origin.

Question 1

A proportional relationship is one that has the x and y –intercept as the origin, (0, 0) and in which the ratio of the values at each point, y/x is a constant

Given (0, 0) is a data point and 72/6 = 144/12 = 216/18 = 12

Therefore; Yes it is proportional because the ratio for Dollar per hour are all equivalent to 12 dollar per hour

Question 2;

The points on the graph are;

(0, 0), (5, 700), (6, 840), (7, 980)

Therefore;

y = (5/700)•x = (1/140)•x

The table is therefore;

x; 1, 2, 3, 4

y; 140 280 420 560

Question 3;

The ratio of the dozens of cookies to cups of flour, gives;

Recipe 1; R = 2/1.5 dozen per cup of flour

Which gives;

Approximately 1.33 dozens per cup of flour

Recipe 2, R = 3/3 dozens per cup of flour

Which gives;

Recipe 3, R = 4/4.5 dozens per cup of flour

Therefore;

No it is not proportional because the ratios between the number of cookies and the cups of flour are not all equivalent

Question 4

The ratio of the terms are;

18.26/36.5 = 11.6/23.2 = 1/2 ≠ 21.1/63.3 = 1/3

Therefore;

No it is not proportional because 18.26/36.5 is not equal 21.1/63.3

Question 5

Given that the graph is a straight line that passes through the origin, it is a proportional relationship with which gives;

Yes, it is a proportional relationship because, it is a line that intersects with the origin

Question 6

The number of calories burned is dependent on the number of hours worked out. For a one–hour work out 190 calories are burnt, and for a two–hours work out there are 380 calories burned

Question 7

The relationship is proportional, given that 3.5/2 = 8.75/5 = 12 .25/7 = 1.75

Therefore; Yes, because the ratios for miles per hour, are all equivalent to 1.75

Explanation: