Question

3) f(t) = -2t²+ 1; Find f(-9) A) -31 B) -71 C) -161 D) -97

Answer 1

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data

f(t) = -2t²+ 1

f(-9) = ?

Step 02:

t = -9

f(-9) = -2(-9)² + 1

= -2(81) + 1

= - 162 + 1

= -161

The answer is:

f(-9) = -161