BEEQ1013.docx - Assignment 2 u2013(Functions and Their...

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Assignment 2 – (Functions and Their Graphs & Exponential and Logarithmic Functions) (40 MARKS – 7.5%)Date submission: NOVEMBER 7, 20191.Find the domain of each functiona)y=4x(2 marks)b)y=xx23x+2(3 marks)c)y=x2+4x24(3 marks)2.Let g(x) = x2+ 4x– 5. Find each of the given outputs.i)g(3)(2 marks)ii)g(x+ h)(2 marks)iii)g(x+ h) – g(x)(3 marks)3.Graph the following function:f(x)={x+1if x≤22x+7if x>2(3 marks)4.The total cost (in Ringgit Malaysia) of producing x DVDs is C(x) = 6.80x+ 450,000.a)What are the fixed cost?(1 mark)b)What is the total cost of producing 50,000 DVDs? (2 marks)c)What is the average cost per DVD when 50,000 are produced? (2 marks)5.Find the vertex, the axis, andx- and y-intercepts of the graph of f(x) = x2

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