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Coordinate Geometry · Paper 2 — Free Maths AI SL Practice Questions

1MasterySAQ-SEquation of a straight line and slope-intercept form6 marksPaper 2~9 min
The graph below shows the cost, CC dollars, of producing nn units of a product, modelled by a straight line. The line passes through points A(20,180)A(20, 180) and B(50,330)B(50, 330).
(a)
Calculate the gradient of the line. [2 marks]
(b)
Determine the equation of the line in the form C=mn+cC = mn + c. [2 marks]
(c)
The fixed cost of production is the cost when n=0n = 0. A manager claims that producing 40 units costs exactly twice the fixed cost. Determine whether the manager's claim is correct, showing all working. [2 marks]
diagram

Solutions

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