3 marksComposition of Functions
CSEC Mathematics · January 2004 · Paper 2 · Question 5(a)(ii)
Given that f(x) = 3x + 4 and g(x) = √x.
Calculate gf(15).
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Practise this questionOther parts of this question
- 5(a)(i)Calculate g(25).[3 marks]
- 5(b)(i)Copy and complete the table below.[10 marks]
- 5(b)(ii)Using a scale of 2 cm to represent 1 unit on the x-axis and 1 cm to represent 1 unit on the y-axis, draw the graph of y = x² - 3x for -2 ≤ x ≤ 5.[10 marks]
- 5(b)(iii)On the same axes as (ii) above, draw the line y = x for -2 ≤ x ≤ 5.[10 marks]
- 5(b)(iv)Use your graphs to determine the solution of the equation x² - 3x = x.[10 marks]
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