Unit 2 Review

The graph of part of h is shown above. Which inequality best represents the domain?

• $-3<x\le1$

• $-3\le x<1$

• $-3\le h\left(x\right)<2$

• $-3<h\left(x\right)\le2$

 $f\left(x\right)=-4x^2-3x+2$ 
What is the value of f(14)?

• 943

• 824

• -824

• -943

The owner of a store buys large boxes of candy bars from a warehouse and repackages them to sell in smaller boxes in his store. The store owner packages 4 candy bars in each small box. Each large box contains 24 candy bars. What is the domain of the function and is it discrete or continuous?

• {6, 12, 18, 24, 30}, discrete

• {1, 2, 3, 4, 5}, discrete

• $0\le x\le30$ , continuous

• $0\le x\le5$ , continuous

Which table represents m as a function of t?

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Given f(x) = 3x - 4, find the range value if the domain value is 2.25.

A set of weights includes an 8 lb barbell and 12 pairs of weight plates. Each pair of plates weighs 10 lb. If x pairs of plates are added to the barbell, the total weight of the barbell and plates in pounds can be represented by f(x) = 10x + 8. What is the range of the function?

• {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

• {8, 18, 28, 38, 48, 58, 68, 78, 88, 98, 108, 118, 128}

• {0, 2, 4, 6, 8}

• {8, 28, 48, 68, 88}

Which graph below represents a functional relationship?

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General admission at the Hirschi Carnival is $20.00. For guests to ride the various rides, they have to use coupons that cost $0.75 each. The number of coupons to ride each ride varies. The function for the situation is h(x) = .75x + 20. What is the domain for the situation?

• All integers greater than or equal to 0.

• All real numbers greater than or equal to 0.

• All real numbers.

• All integers greater than or equal to 16.

The distance of a car from the store is dependent on the seconds a car has been driving. The function representing this relationship is d(x) = 20 - 4x, where d(x) represents the distance from the store and x represents the time the car has been driving. Which set represents the evaluation of the function when x is {0, 1, 2, 3}?

• {-20, -16, -12, -8}

• {10, 8, 6, 4}

• Not here

• {20, 16, 12, 8}

The graph of a function is shown above. What is the range of the function?

• All real numbers.

• All real numbers greater than -6 and less than 3.

• All real numbers greater than -9 and less than or equal to 2.

• All real numbers greater than or equal to -6 and less than 3.