functions test

For the function f(x) = -3(x-1) find f(0).

• 0
• -3
• 3
• -1

• Yes
• No

Is this is a function or not a function?

• Function
• Not a Function

Which set of ordered pairs is a function?

• {(9,5), (10,5), (9,-5), (10,-5)}

• {(3,4), (4,-3), (7,4), (3, 8)}

• {(6,-5), (7, -3), (8, -1), (9, 1)}

• {(2, -2), (5, 9), (5, -7), (1, 4)}

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

If f(x) = -4x - 5 and
g(x) = 3 - x,
what is g(-4) + f(1)?

• 7
• -2
• -9
• -10

True or False: The mapping diagram above is an example of a function.

• True

• False

Does the table represent a function?

• Yes, each input has one output

• No, an input has more than one output.

What is f(5) for the function f?

f(x) = 2(x - 7)

• 3

• -4

• -3

• 1

Which is the equation of the graph shown?