Domain and Range Intro

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A company that manufactures radios first pays a start-up cost, and then spends a certain amount of money to manufacture each radio.  If the cost of manufacturing r radios is give by the function c(r)=5.25r + 125. What is the appropriate domain for the function? 

• Integers

• Non-negative reals

• Non-negative integers

• All reals

The function f(x)=4.95x+2 models the total cost to purchase x pounds of candy from The Sweet Shop. What is the most appropriate domain for the function?

• All integers

• All rational numbers

• All non-negative integers

• All non-negative rational numbers

What is the range?

• all real numbers

• 1<x<6

• {1,3,4,6}

• {-2,2,5}

What is the domain?

• -3 < y ≤ 3

• -4 ≤ y ≤ 5

• -4 ≤ x ≤ 5

• -3 < x ≤ 3

What is the range of the graph?

• -2 < y < 10

• -3 < x < 3

• -2 ≤ y ≤ 10

• -3≤ x ≤ 3

What is the domain of the graph?

• -3 ≤ x ≤ 3

• 3 ≤ x ≤ -3

• -2 ≤ x ≤ 10

• -3 ≤ x ≤ 10

What is the domain of the graph?

• {x| -∞ ≤ x ≤ ∞}

• (-∞,∞)

• -3 ≤ x ≤ 3

• -15 ≤ y ≤ 9

What is the range of the graph?

• -15 < y < ∞

• (-∞, ∞)

• (-15, ∞)

• [-15, ∞)

What is the range of the function?

• [1, 5]

• (5, 4]

• [1, 4]

• (1, 5)