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Using your knowledge of quadratic functions, write the equation in intercept form and vertex form. 9. \(...

Using your knowledge of quadratic functions, write the equation in intercept form and vertex form.
9. \( f(x) = x^2 - 5x - 14 \)
Intercept form:
Vertex form:
10. \( f(x) = -x^2 - 8x - 15 \)
Intercept form:
Vertex form:

Answer

  1. 9. Intercept form:

    \( f(x) = (x - 7)(x + 2) \)

  2. 9. Vertex form:

    \( f(x) = (x - \frac{5}{2})^2 - \frac{81}{4} \)

  3. 10. Intercept form:

    \( f(x) = -(x + 5)(x + 3) \)

  4. 10. Vertex form:

    \( f(x) = -(x + 4)^2 + 1 \)

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