Quick questions on Scattergraphs, correlation and line of best fit - SQA National 5 Applications of Maths

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?

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Points on a scattergraph fall from upper left to lower right. Name the correlation. [1 mark]

What is q2?

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A line of best fit is

y = 4x + 2

. Estimate

y

when

x = 3

. [2 marks]

What is q3?

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A line of best fit passes through

(0, 6)

and

(4, 14)

. Find its gradient. [2 marks]

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