function evaluation

Practise function evaluation with an original VectorPaths question, worked explanation and related VCE Methods practice.

1 practice marks

Original practice question

Let $f(x) = -x^3 + 3$. Calculate $f(-2)$.

Worked explanation

• Substitute x = -2 into f(x)

  \[f(-2) = -(-2)^3 + 3\]

• Calculate the result

  \[f(-2) = 11\]

11

Original VectorPaths practice; not an official VCAA question or marking rubric.