Question

evaluate

f(x)= -sqrt2x+7 for f(37)

a. -3 b. 0 c. -9 d. Not a real number

Answer 1

\[-\sqrt{2x+7} for f(37)\]

Answer 2

\[\Large \begin{array}{l}
f(x) = - \sqrt {2x + 7} \\
f(37) = - \sqrt {(2 \times 37) + 7} \\
= - \sqrt {81} \\
= - 9
\end{array}\]