function evaluation

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

1 practice marks

Original practice question

Let $f(x) = -2x^3 + 1$. Find $f(2)$.

Worked explanation

• Substitute x = 2 into f(x)

  \[f(2) = -2(2)^3 + 1\]

• Calculate the result

  \[f(2) = -15\]

-15

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