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Introduction to Functions: Quiz
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The table shows the number of cups of water required when cooking different amounts of rice. Which statements apply to the ratio of rice and water? Choose two options.
The amount of water is the dependent value.
The amount of rice is the independent value.
What is the domain of the function on the graph?
D. All real numbers greater than or equal to -3
What is the range of the given function?
{(-2, 0), (-4, -3), (2, -9), (0, 5), (-5, 7)}
B. {y | y = -9, -3, 0, 5, 7}
What is the range of the given function?
B. {y | y = -7, -1, 0, 9}
What is the domain of the given function?
{(3, -2), (6, 1), (-1, 4), (5, 9), (-4, 0)}
A. {x | x = -4, -1, 3, 5, 6}
What is the domain of the function shown in the mapping?
A. {x | x = -5, -3, 1, 2, 6}
What is the range of the function on the graph?
B. All real numbers less than or equal to 3
Livia eats a chicken drumstick with 11 grams of protein. She also eats x cheese sticks, each with 7 grams of protein. The table shows y , the total number of grams of protein that Livia will consume if she eats x cheese sticks. Livia may eat only part of a cheese stick, so x may not always be a whole number. What is the range of the function?
C. All real numbers greater than or equal to 11
Which explains why the graph is not a function?
D. It is not a function because there are two different y-values for a single x-value.
How many points need to be removed from this graph so that it will be a function?
C. 3 points
To bill customers for water usage, one city converts the number of gallons used into units. This relationship is represented by the equation g = 748u, where g is the total number of gallons of water used and u is the number of units. Determine which statements about the relationship are true. Choose two options.
3. g is the independent value
2. u is the dependent value
Raj's bathtub is clogged and is draining at a rate of 1.5 gallons of water per minute. The table shows that the amount of water remaining in the bathtub, y, is a function of the time in minutes, x, that it has been draining. What is the range of this function?
C. All real numbers such that 0 ≤ y ≤ 40
Which ordered pair could be removed from the graph to create a set of ordered pairs that represents a function?
C. (1, 3)
The table shows ordered pairs of the function y = 8 - 2x. What is the value of y when x=8?
-8
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