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The cost to board a dog at a kennel varies directly to the number of nights in which the dog will stay. If four nights cost $96, identify the constant of variation and write an equation to represent the relationship.
y=24x
The cost to download songs on a music app varies directly to the number of songs downloaded. If it costs $5.95 to download 7 songs, find the cost to download 20 songs.
$17
The number of calories in a bag of cookies varies directly to the number of cookies in the bag. If a bag with sixteen cookies contains 1,120 calories, determine how many calories are in five cookies.
350 calories
Hannah’s pay varies directly to the number of hours she works. If she made $231 for 28 hours of work, identify the constant of variation and write an equation to represent the relationship.
y=8.25x
Determine if the data shown in the table represents a proportional relationship. If yes, give the constant rate.
Yes; 38 words/minute
Determine if the data shown in the table represents a proportional relationship. If yes, give the constant rate.
No
Given the graph, determine whether a direct variation exists. If yes, identify the constant of variation and write the equation that represents the relationship.
Yes; k=-5/2; y=-5/2x
Given the graph, determine whether a direct variation exists. If yes, identify the constant of variation and write the equation that represents the relationship.
No
Given the graph, determine whether a direct variation exists. If yes, identify the constant of variation and write the equation that represents the relationship.
No
Given the graph, determine whether a direct variation exists. If yes, identify the constant of variation and write the equation that represents the relationship.
Yes; k=2; y=2x
Given the equation, determine whether a direct variation exists. If yes, identify the constant of variation.
No
Given the equation, determine whether a direct variation exists. If yes, identify the constant of variation.
No
Given the equation, determine whether a direct variation exists. If yes, identify the constant of variation.
Yes; k=-1
Given the equation, determine whether a direct variation exists. If yes, identify the constant of variation.
Yes; k=1/2
Given the equation, determine whether a direct variation exists. If yes, identify the constant of variation.
No
Given the table, determine whether a direct variation exists. If yes, identify the constant of variation and write the equation that represents the relationship.
No
Given the table, determine whether a direct variation exists. If yes, identify the constant of variation and write the equation that represents the relationship.
Yes; k=1/3; y=1/3x
Given the table, determine whether a direct variation exists. If yes, identify the constant of variation and write the equation that represents the relationship.
Yes; k = -2; y=-2x
Given the table, determine whether a direct variation exists. If yes, identify the constant of variation and write the equation that represents the relationship.
No
Given the table, determine whether a direct variation exists. If yes, identify the constant of variation and write the equation that represents the relationship.
Yes; k = 4; y = 4x
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