Interpreting graphs Objective To be able to read
Interpreting graphs Objective: To be able to read and plot graphs of real-life problems
What does it show? Firstly, look at the axis to see what the graph represents.
Drawing graphs of real-life situations In your exams you may be asked to complete, or draw, graphs to represent given situations.
Which graph?
Which graph?
Example 1. You are at home getting ready to go out to your stamp collecting club. You leave your house and jog the 1000 m to the club. You arrive 5 minutes later. You exchange stamps and chat for 1 hour, then leave for home. It takes you 10 minutes. Plot a distance time-graph to represent your journey to and from the club.
Drawing graphs of real-life problems 1. Choose a suitable scale for each axis. how points to plot. You 2. are at. Decide home getting readymany to go out to your stamp collecting club. You are at home getting ready to go out to your stamp collecting club. You leave your house and jog the 1000 m to the club. You arrive 5 minutes later. 3. your Draw the withtosuitable accuracy You leave house andgraph jog the 1000 m the club. You arrive 5 minutes later. You exchange stamps and chat for 1 hour, then leave for home. It takes you 10 minutes. 4. Provide a title and label the axis The journey to and from my stamp collecting club 1000 Distance 800 from home (m) 600 400 200 0 10 20 30 40 50 Time (minutes) 60 70 80
MAKE A TITLE Decide on the numbers and add them; then add your axis label 1. 0 Decide on your numbers; add them in; then label the axis Choose a suitable scale for each axis. 2. Decide how many points to plot. 3. Draw the graph with suitable accuracy 4. Provide a title and label the axis You leave your house to visit a friend. On the way, you stop at the local shop for 5 minutes to buy some sweets. You arrive at your friend’s house 1. 5 km, and 15 minutes, after you left home. You stay with your friend for 2 hours before leaving. It takes you 20 minutes to get home.
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