1. The ordered pairs (1, 1), (2, 8), (3, 27), (4, 64), and (5,125) represent a function. What is a rule that represents this function?

Question

Y = x
Y = 4x
Y = x^2
Y = x^3

I don't know how to solve this please help!

Answer 1

The easy way to do these is to look at it and try each of the answers.
For example, 2*1 is not 8 for a answer.
2*4 is 8 and that's ok but 3*4 is not 27.
For answer c, 2^2 = 4 and that's not ok.
Finally, 2*^3 = 8 which is ok. Next, 3^3 = 27 and that's ok. Next 4^3 = 64 and that's ok so I'd go with y = x^3. You can check out the last ordered pair to make sure 5^3 = 125.

Answer 2

Well for this problem what you would do is you would take each set of ordered pairs and substitute the x coordinate for x and the y coordinate for y.
If for all 5 ordered pairs a function works, then that is your answer.

For example take the first one.

With the set of coordinates (1,1)...
the first function would work because 1=1.

Lets try substituting another pair for the same function. (2,8)
8=2.

Since that is not true, you know that this function is not true for all the ordered pairs.

Try this method for the rest of the functions. I hope this helps!

Answer 3

1) A
2) A
3) B
4) D

100% correct

Answer 4

thx @YouDon'tKnowMyNameXD

He/She is right I got 100%

Answer 5

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Answer 6

There are 5 questions on this quiz....
A
A
B
D
D
100% correct I just took the test....

Answer 7

Your the best Meh! Thanks it was 100% right! Same I was like you don’t know my name there are 5 questions! But thanks both Meh and you don’t know my name!

Answer 8

some have 4 and some have 5, mine has 4 questions

Answer 9

I have 19 questions

Answer 10

TEST ANSWERS
1-B
2-D
3-C
4-C
5-A
6-B
7-B
8-A
9-C
10-D

Answer 11

theres 19 on the test

Answer 12

WRONG!!!

Answer 13

Theres 30 questions on mine 😭

Answer 14

you don’t know my name is correct in 2020

Answer 15

This isn't a test, it's a quiz- Lesson 3 Unit 5, mine has 4 questions and A, A, B, D is correct

Answer 16

YoudontknowmynameXD is right

Answer 17

i have 19 questions!?!?!

Answer 18

I have 19 questions too.

Answer 19

Mine has 19 questions PLEASE HELP!

Answer 20

Mine has 19 questions

Answer 21

for different states its differenttt!!!!

Answer 22

Answers for the introduction to function unit test: Unit 5 lesson 9

1. Curved graph going up
2. Curved graph going down
3. (1, 24) (2, 32) (3, 40)
4. Decreasing, linear
5. Y=X^3
6. C(n)=0.4n-0.25; $11.75
7. Relation is a function—6 on right side
8. Relation is not a function— -5, -1, 7 on left side
9. 90 lightbulbs
10. no
11. yes; -9 NEGATIVE NINE
12. A(n)= 130 + (n-1)13; 273 inches
13. starts at 150 cost ends at 200 miles
14. pointed down, past the negatives
15. P= 7n + 20
16. short answer
17. short answer
18. short answer
19. short answer

feel free to ask any questions :)

Answer 23

Are they correct

Answer 24

No they are random

Answer 25

For connexus
1. B
2. C
3. C
4. C
5. A
6. A
7. B
8. D
9. A
10. D
11. D
12. B
13. D
14. D
15. B
16. idk this one But I believe this is not a function as (-2,6) is out of shape and does not form a perfect line.
17. Not sure
18. ($8.25 x $11.00) = $90.75 - 5.00 = 85.75
19. Not sure
Hope this helped

Answer 26

dcadb

Answer 27

For honors students of SCCA, the answers are:
A (Dots going up, in a stair-like way.)
Yes
Linear
y=x^3
A=4r^2-pi r^2

Answer 28

Mine has 30 help please

Answer 29

Please provide the unit and lesson number for your quiz so I can help you better.

Answer 30

unit 5 lesson 9 introduction to functions unit test