Algebraic Representations & Coordinate Plane Review

Four points are graphed on the coordinate grid.

Which ordered pair does not appear to be represented by one of these points?

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The cost of downloading one song from a website is $0.99.

Which equation can be used to find t, the cost of downloading n songs?

• t = 0.99 + n

• n = 0.99 + t

• t = 0.99n

• n = 0.99t

The table shows the relationship between d, the amount of money Alice has at the beginning of each day, and w, the amount of money she has after riding the bus to work.

Which equation represents the relationship in the table?

• w = d + 1.25

• w = 14.50d + 1.25

• w = 15.75d - 1.25

• w = d - 1.25

The graph shows the cost to rent a surfboard for different amounts of time.

Which list best represents the independent values of the graphed points?

• 1, 7.50, 2, 15, 3, 22.50, 4, 30, 5, 37.50, 6, 45

• 5, 10, 15, 20, 30, 35, 40, 45

• 7.50, 15, 22.50, 30, 37.50, 45

• 1, 2, 3, 4, 5, 6

Which situation can be represented by the equation y = 74x ?

• A company uses a total of y gallons of water at a rate of 74 gallons per hour for x hours.

• A restaurant makes a total of y meals in one day, in which 74 meals are served during the first hour and x meals are served during the remaining hours.

• A company manufactures a total of 74 drinking glasses every hour, with x of the glasses made of clear glass and y of them made of blue glass.

• A restaurant prepares a total of y batches of pizza sauce from 74 pounds of tomatoes, with each batch weighs x pounds.

The graph shows the number of points, y, a player earns in a balloon game based on the number of balloons the player pops, x.

Which equation best represents the relationship between x and y?

• y = x + 25

• x = y + 25

• x = 25y

• y = 25x

Point T is located on the coordinate grid at (8.32, -4.51). In which quadrant is point T located?

(a)  

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

A carpenter charges $720 for 18 hours of work. She charges the same amount of money for each hour of work. Which table shows the relationship between the amount of time the carpenter works and the amount of money she charges?

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The owner of a food cart sells an average of 120 frozen treats per day during the summer. Which graph best shows this relationship between the number of days and the number of frozen treats sold?

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The graph shows the amount of money earned by an employee based on the time he spent working.

What is the independent variable?​ (a)  

What is the dependent variable? ​ (b)  

• Time Spent Working (hours)
• Amount Earned (dollars)