Math Function Review

What is the range of the function?

• [-1, +∞)

• (-1,1)

• [1.5, +∞)

• (-2, 2)

What is f(1)?

• 1

• 5

• 0

• 4

The function h(t) represents the height in inches of a plant after t weeks. What does the notation h(4) = 10 mean?

• After 10 week the plant is 4 inches tall

• The plant grows at a rate of 10/4 inch per week

• After 4 weeks the plant is 10 inches tall

• The plant grew for 10 weeks

The function c(m) = 1.45m + 3.50 represents the cost of a taxi for m miles.
What does c(m) represent?

• Total Cost of a taxi

• Total Miles in taxi

Which graph is not a function?

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• 
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Which mapping diagram is not a function?

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What is the domain?

• {-2, -1, 0, 1, 8}

• {3, 5, 7 , 9, 0}

• {-2, -1, 0, 1, 3, 5, 7, 8, 9}

• {-2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

A pizza shop sells pizza for $7.50 each plus $1.25 per topping.  The total price of the pizzas can be determined by the function P(t) = 7.5 + 1.25t, where te is the number of toppings orders and P(t) is the total price of the pizza.  The shop has a delivery policy that all orders must have a minimum of 2 toppings and maximum of 8 toppings for a delivery.  Which inequality represents the range of the situation?

• 2 ≤ P(t) ≤ 8

• 0 ≤ P(t) ≤ 8

• 10 ≤ P(t) ≤ 17.50

• 0 ≤ P(t) ≤ 17.50

Using his spending account at the school store, Randy buys pencils which are 12 cents each.  For the first 4 months of school, Randy bought 3, 4, 6, and 9 pencils.  If the function A = .12p represents the amount, A, Randy spent on pencils each month and p is the number of pencils he buys, what is the range of this function?

• {3, 4, 6, 9}

• {0.15, 0.16, 0.18, 0.21}

• {0.36, 0.48, 0.72, 1.08}

• {3.12, 4.12, 6.12, 9.12}

complete the function notation below

f(____) = 222

• 1990

• 1991

• 1989

• 1994