Create a Function
Create a Non-function
Function or Non-function?
Function Graph
Fun Functions!
100

x y 

1 2

2  4

What x and y values could you add to this to make it  a function?

a: 3 and 1     b: 1 and 17     c:  2 and 21      d: 1 and 3

The correct answer was A.

100

x    y

1    3

2     8

4      8

What x and y values can you add to this to make it a non-function?

a: 2 and 8    b:  1 and 3      c:   4 and 2    d:   5 and 1

The correct answer was C.

100

X   Y

21   14

31    27

61    159

Is this a function or non-function?

This is a function.
100

Does this graph represent a function or non-function?

This graph represents a non-function.

100

Ms. Arciniega bought a machine. It is a function machine, and is supposed to spit out a y value when it is given an x value. Ms. Arciniega puts the number 5 into the machine and it generates the number 4. Ms. Arciniega puts the number 5 into the machine again, and it generates the number 7. Is the machine a proper function? Why?

No, because the machine gave a different output for the same number.


(good job!)

200

Ms. Beacham borrowed a function machine from Ms. A. She wants to test if it is a proper function. What should she do?


A: Plug the same number in twice and see if the answer changes

B: Put in the number 3 and see if it gives the number 6

C: Check whether the 2nd output can be divided by the 1st input and equal the 3rd output. 

The answer is A.



(good job!)

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