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BMI229

  • 3 years ago

What is the axis of symmetry of the graph of y = 2(x - 3)² - 7?

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  1. Grabinfeld
    • 3 years ago
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    You're missing some terms. Assuming you mean y= 2(x-3)(2x-7)?

  2. BMI229
    • 3 years ago
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    no i mean y = 2(x – 3)2 – 7

  3. Grabinfeld
    • 3 years ago
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    Hmm so y=4x-19? It's a straight line, infinite in both directions so the symmetry is at y=-19

  4. terenzreignz
    • 3 years ago
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    I'm positive @BMI229 meant y = 2(x - 3)² - 7

  5. BMI229
    • 3 years ago
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    yes that is what I meant

  6. terenzreignz
    • 3 years ago
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    Okay, @BMI229 You won't always be given the quadratic equations in that form y = a(x - h)² + k But when you are, be thankful, it makes your life easier. What's called the vertex would be located at the point (h , k) The axis of symmetry would be the line x = h

  7. BMI229
    • 3 years ago
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    What is the axis of symmetry of the graph of y = 2(x – 3)2 – 7? x = –6 x = 2 x = 3 x = 7

  8. terenzreignz
    • 3 years ago
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    mhmm... so what is the h-value in this equation y = 2(x - 3)² - 7 ?

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