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Interpret the graph of a linear model

DIFFICULTYintrostandardchallengeexam
QUESTION TYPEMix of allChange
Read the starting valueRead an outputCalculate the contextual rateRecognise the model equationNOWMix of allRecommended
Question 1 of 8

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The graph models the total charge for a mobile mechanic's visit. \(h\) is measured in hours, and \(C\) is measured in $

The model's domain is \(0 \le h \le 5\). The graph uses unit gridlines in the stated axis units

Cartesian graph with horizontal axis Use time (hours) and vertical axis Total charge ($). The window is x from -1 to 6 and y from 85 to 108, with unit gridlines in the displayed axis units. The model segment covers the stated domain from (0, 89) to (5, 104). Marked points: P is (1, 92), Q is (3, 98), R is (4, 101).-1012345686889092949698100102104106108PQRmodelUse time (hours)Total charge ($)
1 mark

Which intercept-slope equation matches the displayed model?