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anonymous

  • one year ago

What is the range of the graph of y = 5(x - 2)2 + 7?

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  1. UsukiDoll
    • one year ago
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    range is in the y-axis

  2. anonymous
    • one year ago
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    so is the range 7<y

  3. anonymous
    • one year ago
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    Use graphic calculator to solve: http://www.acalculator.com/graphing-calculator-online/

  4. anonymous
    • one year ago
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    The website is kinda confusing, thanks anyway. Can anyone explain how to find the range and what it is for this equation please??

  5. UsukiDoll
    • one year ago
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    you need to graph first then find the range based off that graph which is located in the y-axis

  6. zzr0ck3r
    • one year ago
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    The leading coefficient is positive so you know it looks like a smiley face. This is in vertex form with vertex \((-2,7)\). So the lowest value the function takes is \(7\).

  7. zzr0ck3r
    • one year ago
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    no need to graph. That is why they gave it in vertex form. A quadratic with positive leading coefficient and vertex \((a,b)\) has range \(y\ge b\) A quadratic with negative leading coefficient and vertex \((a,b)\) has range \(y\le b\)

  8. anonymous
    • one year ago
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    Oh ok so y>=7 should be my answer, right?

  9. UsukiDoll
    • one year ago
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    oh... I see. x.x if \[y \geq 7\] then we have a quadratic with a positive leading coefficient and vertex (a,b). IN this case we have a = -2 and b = 7 so (-2,7)

  10. anonymous
    • one year ago
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    Yay Thank you everybody who helped

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