Identifying Functions

Open Ended

In your own words, what is a function? Make sure your response includes the different parts of a function!

Multiple Choice

Which set of values 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)

Multiple Choice

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.

Multiple Choice

Is this mapping a function or not a function? 

• Function

• Not a Function

Multiple Choice

Is this table a function or not a function? 

• Function

• Not a Function

Multiple Choice

Is this table a function or not a function? 

• Function

• Not a Function 

Multiple Choice

Is this table a function or not a function? 

• Function

• Not a Function

Multiple Choice

Is this set of ordered pairs a function and how can you tell?

• Yes its a function because no y values repeat

• No it's not a function because there are negative numbers

• No it isn't a function because an x value repeats but has different y values 

• No it isn't a function because an y value repeats but has different x values

Multiple Choice

.

• Function

• Not a Function

Multiple Choice

Is the relation a function?{(1,5),(1,7),(3,9),(4,11)}

• Yes

• No

Multiple Choice

Is this mapping a function or not a function? 

• Function

• Not a Function 

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• Yes, because it passes the vertical line test

• No, because it does not pass the vertical line test

Multiple Choice

Which graph represents a function?

Multiple Choice

Which image is NOT the graph of a function?

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

Is y a function of x?

• function

• not a function

Multiple Choice

What is f(6) for the function f(x)=3x-8

• -8

• 10

• -144

• answer not here

Multiple Choice

What is  $$f\left(0\right)$$   for the function $$f\left(x\right)=2x+3$$  

• 2x

• -3

• 3

• 10

Multiple Choice

$$Given\ f\left(x\right)=6x-10\ what\ is\ f\left(120\right)$$  

• $$-10$$  

• $$-4$$  

• $$120$$  

• $$710$$  

Multiple Choice

For the function f(x) = 4x + 2, find x such that f(x) = 2.

• 10

• 2

• -2

• 0

Multiple Choice

How do you read f(x)?

• f x

• f of x

• f parenthesis x

• f with an x inside parenthesis

Multiple Choice

f(x) is the same thing as ______.

• y

• x

• input

• an equation

Multiple Choice

If f(x) = 2x+1, what would the function look like once you substitute in a 1 to find f(1)?

• f(x) = 21+1

• f(1) = 2 (1) + 1

• f(1) = 2x (1) + 1

Multiple Choice

If a question asks you to find f(2), what does that mean?

• Let x = 2

• Let y = 2

Multiple Choice

$$Given\ f\left(x\right)=\frac{1}{3}\left(x+6\right)\ what\ is\ f\left(-6\right)?$$  

• $$\frac{2}{3}$$  

• $$-8$$  

• $$-6$$  

• 0

Multiple Choice

$$Given\ f\left(x\right)=\frac{3}{2}x+5\ what\ is\ f\left(12\right)?$$  

• $$\frac{43}{2}$$  

• $$20$$  

• $$23$$  

• $$5$$  

Multiple Choice

$$Evaluate\ the\ function\ for\ f\left(-9\right)\ if\ f\left(x\right)=\frac{3}{5}x+8$$  

• $$\frac{67}{5}$$  

• $$-\frac{13}{5}$$  

• $$-\frac{67}{5}$$  

• $$\frac{13}{5}$$  

Multiple Choice

$$Given\ h\left(x\right)=3x^2-2x+8\ what\ is\ h\left(2\right)?$$  

• 13

• 8

• 16

• answer not here