Mathematics 0580 · IGCSE · Scatter diagrams

Scatter diagrams — practice question

The scatter diagram plots the age and value of each of ten cars of the same model. The horizontal axis runs from 0 to 12 for Age (years). The vertical axis runs from 0 to 14 000 for Value ($). Ten points are shown.
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Use a line of best fit to estimate the value of a car aged 6 years.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A ruled straight best-fit line” …

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