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Find the equation of a line fitted to a scatterplot

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Question 1 of 8

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Examine the relationship between weekly training distance and fitness test total

Scatterplot with 8 points. The horizontal axis is weekly training distance (km) and the vertical axis is fitness test total (points). The observed values of weekly training distance run from 67 to 81, and the observed values of fitness test total run from 326 to 398. The points rise from left to right around a straight path, with small departures from that path. A fitted line is drawn through the on-line anchors (72, 362) and (76, 378).707580320340360380400weekly training distance(km)fitness test total(points)

The fitted line passes through the on-line anchors (72, 362) and (76, 378)

(a)1 mark

What is the slope of the drawn fitted line?

(b)1 mark

Determine the intercept without treating the leftmost point as the axis crossing

(c)1 mark

Which rule matches the fitted line and the variable roles?