Given the quadratic function: f(x) = x2 + 2x - 8. a) Find the constants a, b and c and the vertex of parabola. Explain if parabola opens upward or downward. b) Find y-intercept point c) Find x-intercept points d) Graph the function

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.