The diagram shows the graph of 3x + 2y = 30. OPQR is a rectangle with area
Question:
The diagram shows the graph of 3x + 2y = 30. OPQR is a rectangle with area Acm2.
The point O is the origin, P lies on the x-axis, R lies on the y-axis and Q has coordinates (x, y) and lies on the line 3x + 2y = 30.
a. Show that 
b. Given that x can vary, find the stationary value of A and determine its nature.
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ANSWER a To find the area of the rectangle OPQR we need to first find the coordinates of P and R Sin...View the full answer
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Related Book For 
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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