# algebra

Can someone check my answers on exploring conic sections?

1. Graph x2 + y2 = 9. What are its lines of symmetry?

Every line through the center is a line of symmetry.

The y-axis and the x-axis are lines of symmetry.( my choice)

Every line through the center is a line of symmetry.

The y-axis and the x-axis are lines of symmetry.

2. Graph x2 + 9y2 = 25. What are the domain and range?

Domain: ¨C3 ¡Ü x ¡Ü 3
Range: ¨C3 ¡Ü y ¡Ü 3

Domain: ¨C5 ¡Ü x ¡Ü 5
Range: ¨C5 ¡Ü y ¡Ü 5 (my choice)

Domain: ¨C5 ¡Ü x ¡Ü 5
Range: ¨C1.67 ¡Ü y ¡Ü 1.67

Domain: ¨C1.67 ¡Ü x ¡Ü 1.67
Range: ¨C5 ¡Ü y ¡Ü 5

3. Graph x2 ¨C y2 = 16. What are its lines of symmetry?

It has four lines of symmetry, the x-axis, the y-axis, y = x, and y = ¨Cx.

Every line through the center is a line of symmetry.

It has four lines of symmetry, the x-axis, the y-axis, y = x, and y = ¨Cx.

It has two lines of symmetry, the x-axis and the y-axis. ( my choice)

4. Identify the center and intercepts of the conic section. Then find the domain and range.

The center of the ellipse is (0, 0).
The x-intercepts are (0, 5) and (0, ¨C5).
The y-intercepts are (¨C3, 0) and (3, 0).
The domain is {x | ¨C3 ¡Ü x ¡Ü 3}.
The range is {y { ¨C5 ¡Ü y ¡Ü 5}.

The center of the ellipse is (0, 0).
The x-intercepts are (¨C3, 0) and (3, 0).
The y-intercepts are (0, 5) and (0, ¨C5).
The domain is {x | ¨C3 ¡Ü x ¡Ü 3}.
The range is {y { ¨C5 ¡Ü y ¡Ü 5}.( my choice)

The center of the ellipse is (0, 0).
The x-intercepts are (0, 5) and (0, ¨C5).
The y-intercepts are (¨C3, 0) and (3, 0).
The domain is {y { ¨C5 ¡Ü y ¡Ü 5}.
The range is {x | ¨C3 ¡Ü x ¡Ü 3}.

The center of the ellipse is (0, 0).
The x-intercepts are (0, 5) and (0, ¨C5).
The y-intercepts are (¨C3, 0) and (3, 0).
The domain is {y { ¨C5 ¡Ü y ¡Ü 5}.
The range is {x | ¨C3 ¡Ü x ¡Ü 3}.

5. Identify the center and intercepts of the conic section. Then find the domain and range.

The center of the hyberbola is (0, 0).
The y-intercepts are (0, 5) and (0, ¨C5).
The domain is all real numbers.
The range is {y | y ¡Ý ¨C5 or y ¡Ü 5}.

The center of the hyberbola is (0, 0).
The x-intercepts are (0, 5) and (0, ¨C5).
The domain is all real numbers.
The range is {y | y ¡Ü ¨C5 or y ¡Ý 5}.

The center of the hyberbola is (0, 0).
The y-intercepts are (0, 5) and (0, ¨C5).
The domain is all real numbers.
The range is {y | y ¡Ü ¨C5 or y ¡Ý 5}.(my choice)

The center of the hyberbola is (0, 0).
The x-intercepts are (0, 5) and (0, ¨C5).
The domain is all real numbers.
The range is {x | x ¡Ü ¨C5 or x ¡Ý 5}.

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1. #1. Every line through the center is an axis of symmetry. The x- and y- axes are just two of them.

#2. Not sure what the scrambled symbols are, but
domain is -5 <= x <= 5
range is -5/3 <= y <= 5/3

#3. Since + came out ok, I assume the equation is

x^2 - y^2 = 16

As you say, x- and y-axes are the axes of symmetry

#4. If your choice is correct, the equation of the ellipse must have been

x^2/9 + y^2/25 = 1

#5. If your choice is correct, the equation of the hyperbola must have been

y^2/25 - x^2 = 1

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2. 12m to the 3rd power plus 12m to the 2nd power plus 0m divided by 3m to the 2ns power divided by 3m to the 2nd power

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3. a.
c.
d.
b.
c.

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4. Thanks^^ 100% right

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5. The fact I can see you soon as possible and to get my nails are you doing it wrong that I'm going back and I don't think that it was not immediately available to all of them in my head and a lot more fun and addicting and I don't think that it was not immediately available to all of them in my head

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6. A
C
D
B
C
They are all wrong, the guy that posted them just replied to himself and said they are all correct.

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7. Chai's answer's are all right, just got a 100%, thanks buddyo

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8. ;)

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9. ^?

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10. ?
does anyone have the answers to the circles quiz for connections academy algrba 2

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11. Not all Hero/Heroines where capes

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12. To make this thread clear,

a.
c.
d.
b.
c.

ARE the correct answers! I recently took this the other day and got a 5/5. Ignore the other comments trying to mislead everyone..

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13. Thomas Is correct

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14. Number 4 is B

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15. yeah, Thomas is right!!

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16. Thomas is 100% correct!

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17. I hope these is right bruh

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18. You can create infinite accounts??

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19. Thomas is correct :)

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20. Still correct! uwu ty thomas

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21. correct answers above for Anonymous 100%

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A
C
D
B
C
I just took the test. 5/21/2020

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23. A
C
D
B
C
Took the quick check 100% correct 12/7/2020

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24. lauren and imposter are correct

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25. 100% for honors as of 3/4/21

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26. A
C
D
B
C
Correct as of 6 March 2021
Exploring Conic Sections Quick Check

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27. ^^^ still correct
3/25/21

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28. kid is right

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29. A
C
D
B
C
Exploring Conic Sections - Quick Check 100%
5/5/2020

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30. Its still correct till this day! Zack 100%

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