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Finding the Zeros and Intercepts of f(x)=6x2+13x15f(x) = 6x^2 + 13x - 15

To find the zeros and intercepts of the quadratic function f(x)=6x2+13x15f(x) = 6x^2 + 13x - 15:

Finding the zeros: Set the function equal to zero, 0=6x2+13x150 = 6x^2 + 13x - 15. Factor the trinomial to obtain (x+3)(6x5)=0(x + 3)(6x - 5) = 0. Apply the zero product property to solve for xx, yielding the zeros x=3x = -3 and x=56x = \frac{5}{6}.

Finding the x-intercepts: Because x-intercepts occur where the function value is zero (y=0y = 0), the x-intercepts of the graph correspond to the zeros. Therefore, the x-intercepts are the points (3,0)(-3, 0) and (56,0)(\frac{5}{6}, 0).

Finding the y-intercepts: To find the y-intercept, evaluate the function at x=0x = 0. Substituting 00 into the function gives f(0)=6(0)2+13(0)15=15f(0) = 6(0)^2 + 13(0) - 15 = -15. Thus, the y-intercept is the point (0,15)(0, -15).

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Updated 2026-04-30

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