# New PDF release: The Language of Functions and Graphs An Examination Module

By Malcom Swan

ISBN-10: 0901628433

ISBN-13: 9780901628435

Read Online or Download The Language of Functions and Graphs An Examination Module for Secondary Schools PDF

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Extra resources for The Language of Functions and Graphs An Examination Module for Secondary Schools

Sample text

Who was making a local call? Again, explain. • Which people were dialling roughly the same distance? Explain. • Copy the graph and mark other point which how people making local calls of different durations. • If you made a similar graph showing every phone call made in Britain during one particular week-end, what would it look like? Draw a ketch, and clearly state any assumptions you make. • Copy the graph below. On each graph, mark and label two points to represent A and B. A"LS;"L Crui ing peed 3.

5) and ending at (45,1). However, since it is not "concave downwards", she was awarded 2 marks out of the possible 3. Mark 3 Radius of tape on left hand spool (em) 2 1 o 10 20 30 40 50 Time (minutes) Mark's sketch is a "concave downwards" curve, but does not end at (45,1). He was also awarded 2 marks for this section. he. /) O--A? ~ ~ v... - ~iv-':> t;ba. con SI-CLfl CJ' \rlcJ'd spool. J ~ tA- ~; II 5~ ~s ~~~C-~ ~ s~ t- . Julie /he r-I'§I-Y h=nd at: h:9 h 0. hOU3 h +-hOl.

She was awarded 3 marks for these. Wendy does not, however, obtain any "commentary" marks, since she has described each athlete's run separately, rather than giving a commentary on the race as a whole. 45 THE CASSETTE TAPE r::71 I;: H >1 This diagram represents a cassette recorder just as it is beginning to playa tape. The tape passes the "head" (Labelled H) at a constant speed and the tape is wound from the left hand spool on to the right hand spool. 5 cm. The tape lasts 45 minutes. (i) Sketch a graph to show how the length of the tape on the left hand spool changes with time.