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ABC is a triangle whose vertices are A(1, –1), B(0, 4) and C(–6, 4). D is the midpoint of BC. Find the:
Write the equation of the line through the points (1, –1) and (3, 5).
Passing through the points (–1, 1) and (2, – 4).
The vertices of ∆ PQR are P (2, 1), Q (–2, 3) and R (4, 5). Find equation of the median through the vertex R.
The length L (in centimetre) of a copper rod is a linear function of its Celsius temperature C. In an experiment, if L = 124.942 when C = 20 and L= 125.134 when C = 110, express L in terms of C.
The owner of a milk store finds that, he can sell 980 litres of milk each week at Rs 14/litre and 1220 litres of milk each week at Rs 16/litre. Assuming a linear relationship between selling price and demand, how many litres could he sell weekly at Rs 17/litre?
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