Introduction to Functions Unit Test Review

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Which ordered pair could be removed so that the set of ordered pairs is a function?

(-3, 2)

Which ordered pair can be removed so that the resulting graph represents a function?

(1, 3)

Which statement is true regarding the functions on the graph?

(2) = g(2)

The table shows ordered pairs of the function y = 16 + 0.5x . Which ordered pair could be the missing values represented by (x, y)?

(8, 20)

The function f(x) is shown on the graph. If f(x) = 0, what is x?

-2, 1, or 3 only

The function f(x) is shown on the graph. What is f(0)?

-6 only

The graph represents a functional relationship. Which value is an input of the function?

4

Which graph represents a function?

D

What is the inverse of the function f(x) = x +3?

NOT h(x) = x + 3 h(x) = x - 3

Consider the function represented by the equation x - y = 3. What is the equation written in function notation, with x as the independent variable?

f(x) = x - 3

On his first day of school, Kareem found the high temperature in degrees Fahrenheit to be 76.1°. He plans to use the function c(f) = 5/3(f-32) to convert this temperature from degrees Fahrenheit to degrees Celsius. What does C(76.1) represent?

the temperature of 76.1 degrees Fahrenheit converted to degrees Celsius

Consider the function represented by the graph. What is the domain of this function? {x| x > __}

{x| x > 0}


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