Grade 8 Functions & Relationships Quiz

Inputs, Outputs, Flow Diagrams, Tables and Formulae

What this quiz covers

Grade 8 Functions & Relationships Quiz draws its questions at random from a bank of 13 questions. A full worked solution is shown after you answer each one.

Example questions

A sample of the questions you will practise in this quiz. Work them out yourself - the full solution appears after you answer each one.

  1. In the relationship \(x \rightarrow \text{rule} \rightarrow y\), what is \(x\) called?
  2. The rule is "add 5". What is the output for input \(x=-2\)?
  3. Use the flow diagram \(x \rightarrow \times 3 \rightarrow +1 \rightarrow y\). What is \(y\) when \(x=4\)?
  4. Which formula matches the flow diagram \(x \rightarrow \times 6 \rightarrow -4 \rightarrow y\)?
  5. A table shows \(x\): 1, 2, 3, 4 and \(y\): 5, 8, 11, 14. What is the rule?