function evaluation

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

1 practice marks

Original practice question

Let $g(x) = \dfrac{-x - 2}{x + 3}$. Find $g(-1)$.

Worked explanation

• Substitute x = -1 into f(x)

  \[f(-1) = \dfrac{-(-1) - 2}{(-1) + 3}\]

• Calculate the result

  \[f(-1) = - \frac{1}{2}\]

-1/2

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