Asked by Charlotte

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?

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

I don't know how to solve this please help!
Answered by DrBob222
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.
Answered by Serena
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!
Answered by YouDon'tKnowMyNameXD
1) A
2) A
3) B
4) D

100% correct
Answered by WAFFLES
thx @YouDon'tKnowMyNameXD

He/She is right I got 100%
Answered by Z
Thank UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU!
Answered by Meh
There are 5 questions on this quiz....
A
A
B
D
D
100% correct I just took the test....
Answered by Thanks!
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!
Answered by Cheese :3
some have 4 and some have 5, mine has 4 questions
Answered by Y E E
I have 19 questions
Answered by Kay
TEST ANSWERS
1-B
2-D
3-C
4-C
5-A
6-B
7-B
8-A
9-C
10-D
Answered by ahhhhhchu
theres 19 on the test
Answered by Ms.sueeeeeeeeee
WRONG!!!
Answered by School Sucks 🥀
Theres 30 questions on mine 😭
Answered by among sus
you don’t know my name is correct in 2020
Answered by Lemon boy
This isn't a test, it's a quiz- Lesson 3 Unit 5, mine has 4 questions and A, A, B, D is correct
Answered by Hiiii
YoudontknowmynameXD is right
Answered by come on now (in country tone)
i have 19 questions!?!?!
Answered by Lulu
I have 19 questions too.
Answered by bruh
Mine has 19 questions PLEASE HELP!
Answered by Hey
Mine has 19 questions
Answered by stay skz
for different states its differenttt!!!!
Answered by No name
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 :)
Answered by Orange juice sus
Are they correct
Answered by Lelelel
No they are random
Answered by joe
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
Answered by Ariana WarJ
dcadb
Answered by Shush. I'm a bush!
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
Answered by CheetahSpax
Mine has 30 help please
Answered by Bot
Please provide the unit and lesson number for your quiz so I can help you better.
Answer
unit 5 lesson 9 introduction to functions unit test
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