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-   -   What is the x intercept in y=3x^2+8x+3 (https://www.askmehelpdesk.com/showthread.php?t=477156)

  • Jun 7, 2010, 01:22 AM
    bobthebreaker
    what is the x intercept in y=3x^2+8x+3
    help me find the x intercepts and y intercepts
    the line of best fit
    the vertex
    and max and min
  • Jun 7, 2010, 03:12 AM
    galactus
    First off, graph it so you have a picture of what it looks like.

    x-intercept:

    Set y=0 and solve for x by using quadratic formula.

    y-intercept:

    Set x=0 and solve for y.

    vertex:

    Use to find the x and y coordinates of the vertex.

    max or min:

    For a parabola the max or min is at the vertex. This one is concave up, so it has a minimum.
  • Oct 5, 2011, 01:36 PM
    Lilicilla
    Y=-3x^2-8x-3 graficar, dominio y rango

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