function evaluation

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

1 practice marks

Original practice question

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

Worked explanation

• Substitute x = -2 into f(x)

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

• Calculate the result

  \[f(-2) = -4\]

-4

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