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15 January, 23:02

For the given equation, find the values of a, b, and c, determine the direction in which the parabola opens, and determine the y-intercept. Decide which table best illustrates these values for the equation: f (x) = 9x^2+5x+3

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  1. 15 January, 23:41
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    A = 9, B = 5, C = 3

    the parabola opens upwards

    y-intercept = 3

    Step-by-step explanation:

    Since the equation is f (x) = 9x^2+5x+3, you can determine what a, b, and c are by associating it with a quadratics standard form, ax^2+bx+c. The numbers correspond with each letter in the skeletal equation.

    To determine whether the parabola opens up or down, you can simply look at the a value. If x > 0, the the parabola will open upwards, whereas if x < 0, the parabola will open downwards.

    To determine y-intercept, just plug in the value of 0 into x and solve for y.
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