Practice A: Line Graphs and Line Plots
Chapter 9 · Consolidation 1
Mixed consolidation. Attempt problems independently before revealing the solutions.
Using the graph, calculate the signed change from Mon to Wed.
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Read the two measurements: 11 − 12 = -1.
Using the graph, calculate the signed change from Mon to Fri.
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Read the two measurements: 11 − 16 = -5.
Draw a line plot for these values: 1, 1, 2, 2, 2, 3, 4, 6, 6, 6, 7, 7. How many X marks should appear in total?
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Put one X above the number line for every recorded value: 12 marks total.
From the line graph below, read the number collected on Fri.
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Read the plotted point above Fri on the vertical scale: 4.
From the line graph below, read the number collected on Wed.
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Read the plotted point above Wed on the vertical scale: 4.
What is the total number of observations recorded by the line plot?
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Count the X marks: there are 12 observations.
Using the graph, calculate the signed change from Tue to Wed.
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Read the two measurements: 19 − 12 = 7.
Using the graph, calculate the signed change from Mon to Fri.
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Read the two measurements: 9 − 15 = -6.
Draw a line plot for these values: 1, 1, 1, 2, 2, 6, 6, 7, 7, 8, 8, 8. How many X marks should appear in total?
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Put one X above the number line for every recorded value: 12 marks total.
From the line graph below, read the number collected on Mon.
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Read the plotted point above Mon on the vertical scale: 8.
From the line graph below, read the number collected on Mon.
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Read the plotted point above Mon on the vertical scale: 8.
What is the total number of observations recorded by the line plot?
Show answer & reasoning
Count the X marks: there are 12 observations.
Using the graph, calculate the signed change from Mon to Fri.
Show answer & reasoning
Read the two measurements: 16 − 6 = 10.
Using the graph, calculate the signed change from Mon to Wed.
Show answer & reasoning
Read the two measurements: 18 − 14 = 4.
Draw a line plot for these values: 1, 2, 2, 2, 3, 3, 3, 4, 5, 5, 6, 8. How many X marks should appear in total?
Show answer & reasoning
Put one X above the number line for every recorded value: 12 marks total.
From the line graph below, read the number collected on Fri.
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Read the plotted point above Fri on the vertical scale: 5.
From the line graph below, read the number collected on Tue.
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Read the plotted point above Tue on the vertical scale: 17.
What is the total number of observations recorded by the line plot?
Show answer & reasoning
Count the X marks: there are 12 observations.