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Topic: Coordinates and Graphs (Foundation - Unit 2)

Specification References: N6.11 N6.11 Construct linear functions from real-life problems and plot their corresponding graphs.

Candidates should be able to:

• plot a graph representing a real-life problem from information given in words or in a table or as a formula
• identify the correct equation of a real-life graph from a drawing of the graph
• read from graphs representing real-life situations; for example, the cost of a bill for so many units of gas or working out the number of units for a given cost, and also understand that the intercept of such a graph represents the fixed charge

Examples

1. The cost of hiring a bike is given by the formula , where d is the number of days for which the bike is hired and C (£) is the total cost of hire.
   Plot the graph of number of days against cost for values of d from 0 to 7.

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