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mathtard Group Title

Find the x and y intercepts f(x) = -x^2+4x+45

  • 2 years ago
  • 2 years ago

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  1. Rita1975 Group Title
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    X intercept means plug in f(x) = 0 and solve for x Y intercept means plug in x =0 and find f(x)

    • 2 years ago
  2. LagrangeSon678 Group Title
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    |dw:1314673518595:dw|

    • 2 years ago
  3. satellite73 Group Title
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    y intercept is the constant in this case it is (0,45)

    • 2 years ago
  4. mathtard Group Title
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    ok, so how do i get the x intercept?

    • 2 years ago
  5. LagrangeSon678 Group Title
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    i just got them for you

    • 2 years ago
  6. LagrangeSon678 Group Title
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    did you look at the drawing

    • 2 years ago
  7. LagrangeSon678 Group Title
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    |dw:1314673935920:dw|

    • 2 years ago
  8. mathtard Group Title
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    so 0,45 isn't correct?

    • 2 years ago
  9. LagrangeSon678 Group Title
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    that is the y intecept

    • 2 years ago
  10. LagrangeSon678 Group Title
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    the i wrote (9,0) and (-5,0) are the x intercpets

    • 2 years ago
  11. mathtard Group Title
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    ok I guess Im just confused now.

    • 2 years ago
  12. LagrangeSon678 Group Title
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    thats cause you need to study more

    • 2 years ago
  13. mathtard Group Title
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    I guess I do, but you are here to help people who don't get it as easily as you do right?

    • 2 years ago
  14. LagrangeSon678 Group Title
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    yeah i am

    • 2 years ago
  15. LagrangeSon678 Group Title
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    here man, check this out: To find the x intercepts, set y to be 0 and factor the polynomial like i did above, then set each term to zero and solve for x. To find the y intercept, set x to be zero and evaluate

    • 2 years ago
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