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

Is the answer C?

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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

    the real answers are

    B
    A
    B
    B
    D
    A

    100% for Connection Academy students

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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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  10. Answers is correct for Colorado Connections academy.

    Tako~

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  11. 1. B
    2. A
    3. D
    4. B
    5. D
    6. B
    They switched the answers

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  12. @Havem is right

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  13. Answers is correct

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

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  15. @ Answers is correct!!!

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  16. So who is right for Nevada Connections Academy??

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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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  20. Lesson 2: Quadratic Functions
    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
    Lesson 2: Quadratic Functions
    --
    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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  28. Answers is right for michigans connections academy

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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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  38. Oklahoma connections academy
    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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