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.
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.
X Y
21 14
31 27
61 159
Is this a function or non-function?
Does this graph represent a function or non-function?
This graph represents a non-function.
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!)
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!)