algebra

Which equation represents the axis of symmetry of the function y=-2x^2+4x-6

A y=1
B x=1
C x=3
D x=-3

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1. the axis is x = -b/2a = -4/-4 = 1

So, B

-2x^2 + 4x - 6 = -2(x-1)^2 - 4

You could easily see that x=3 is wrong, by checking f(x) at values equally spaced from it, as f(2) and f(4). If x=3 is the axis of symmetry, they should be the same. But,

f(2) = -6
f(4) = -22

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2. 1. B
2. A
3. D
4. B
5. D
6. B

100%

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3. Thanks @awnsers!

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4. @awnsers is 100% if anyone is wondering:)

(For connexus)

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5. @awnsers is incorrect

B
A
B
B
D
A

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6. Actually, nope. You up there buddy, ^^^ @CAstudent are wrong.

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7. @awnsers is so wrong
@CA students is right! they changed the questions!

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8. I'm in normal Algebra 1, not GT Algebra 1 (not sure if there's a difference in test answers), and for me, @awnsers is 100% correct.

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9. sometimes different states have different questions, im in Colorado connections & for me awnsers was right. thanks awnsers!!

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Tako~

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11. 1. B
2. A
3. D
4. B
5. D
6. B

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12. @Havem is right

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14. Thank you, on behalf of the people of Wakanda

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17. Oh! Havem was 100% correct for Nevada Connections

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18. Awnsers is correct for michigan

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19. @awnsers is correct for GACA
+
7.D
8.C

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Algebra 1 B Unit 4: Quadratic Functions and Equations
1. B x=1
2. A (3,-2)
3. D (-2,15)
4. B (It looks like a U on the left side of the y axis)
5. D y=2x^2+8x-5
6. B y=19x-10
The final score is 6/6 (100%).

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21. @haven is 100% correct for Idaho connections

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22. Thank you awnsers

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23. @Havem is right for Reach Cyber

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24. Unit 4: Quadratic Functions and Equations
--
1. B. x=1
2. A. (3, -2)
3. D. (-2, 15)
4. B. *graph*
5. D. y=2x^2-8x-5
6. B. y=19x-10
7. D. -5
8. C. The functions have the same minimum value.
--
6/8 for me
And 6/6 for all the answers but the last two if you don't have them!
---
Skel#0532

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25. ~For TCAH students (and whoever else wants to read this XD)~
@awnsers is correct but for me, there were only 5 questions so the answers to that are: B, A, D, B, D.

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26. ^^^^This guy is right 100%

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27. yay 100%

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29. Thanks to @answers and "Jodi" I got a 100% on my quick check. I am GA Connections Academy doing Algebra 1 B for the second semester. Don't mind the other comments answers and Jodi are 100% right.

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30. For Texas Connection Algebra 1B its
1. B
2. A
3. B
4. B
5. D
6. A

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31. joey is 100% correct

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32. The staar test is non existent this year 🗿

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33. u are right my dude

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34. YAY!! no STAAR

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35. 1. B
2. A
3. D
4. B
5. D
6. B

Will get you a 100% for Ohio Connections Academy Lesson 2 Unit 4 :)

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36. @zaddy is 100% right tysm!!

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37. For California connections its

1. B. x=1
2. A. (3, -2)
3. D. (-2, 15)
4. B. *graph*
5. D. Y=2x^2+8x-5
6. B. Y=19x-10

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Quadratic Functions lesson 2 unit 1
1. f(x)=x^2+4x+1
C axis of symmetry:x =-2
Vertex: (-2,3)

2. f(x) =x^2+4x-2
D axis of symmetry:x=-2
Vertex (-2,-6)

3. -2x^2+4x-6
B x=1

4. A ball s thrown into the air with an upward velocity of 28 ft/s. It's height (h) in feet after t seconds is given by the function h=-16t^2+28t+7. How long does it take the ball to reach it's maximum height? What is the balls maximum height ? Round to the nearest hundredth, if necessary.
D 0.88 s; 19.25 ft

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39. for arca, the answers are...
1. B x = 1
2. A (3, -2)
3. D (-2, 15)
4. B it is a graph, but here's the question "Which graph represents the function y = 3x² + 12x –6?" + there should be a curve that covers a bit of the - in -16.
5. D y = 2x² + 8x – 5
6. B y = 19x – 10

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40. Good afternoon students.
This is your math teacher Mrs Mendy, as I tell something I do not wanna see other students cheating. Please Obey the rules in connection academy

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41. Havem is correct I got a 100

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42. thx guys

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