Question

Use the quadratic function to predict f(x) if x equals 8 F(x)=25^2-28x+585A. F(8)=2679B. F(8)=2201C. F(8)=1961D.f(8)=1614

Answer 1

Substitute 8 for x in the quadratic function to determine the value of f(8).

$\begin{gathered} f(8)=25\cdot(8)^2-28\cdot8+585 \\ =1600-224+585 \\ =1961 \end{gathered}$