Question

1.) y = - 4x^2 - 8x +9A.) Identify the coefficients (a, b, and c) B.) Tell whether the graph opens up or opens down C.) Find the vertex D.) Find the axis of symmetry E.) Find the y-intercept

Answer 1

EXPLANATION:

The given equation is a quadratic function, therefore it is of the form f (x) = ax² + bx + c, a ≠ 0; where the letters a, b and c are the coefficients; and always the coefficient c of a quadratic function is called constant.

The coefficients a, b and c of the quadratic function are as follows:

ANSWER:

$\begin{gathered} coefficient\text{ a=}4 \\ \text{coefficient b=8} \\ \text{coefficient c=9} \end{gathered}$