Interpreting Graphs - Exercise 8A

Flashcards covering key examples and fluency problems from Exercise 8A on interpreting pie charts and column graphs.

According to the explanation for car-related expenses, why is petrol identified as the largest expense?

Petrol occupies the largest area of the graph.

If maintenance occupies $\frac{1}{4}$ of a chart's area, what percentage does this equal?

$$25\%$$

In the worked example, if $50\%$ of a car owner's expenses equals $\$3000$, what is the total amount spent on expenses each year ($100\%$)?

$$\$6000$$

Based on the column graph titled "Village's populations", what is the population of Delant?

$$2000$$

According to the "Village's populations" graph, what is the difference between Wilber's population and Bronnen's population?

$$1000$$

According to the "Village's populations" column graph, which village has the smallest population?

Funston

According to the "Children's ages" column graph, how old is Peta?

$10$ years old

According to the "Children's ages" column graph, how old is Kris?

$6$ years old

According to the "Children's ages" column graph, who is the oldest of the five children?

Phillip

According to the "Children's ages" column graph, who is the youngest of the five children?

Nyree

According to the "Children's ages" column graph, what is the difference in age between Tsets and Nyree?

$4$ years

According to the Year 8 sports survey table, how many students in class 8B voted for water polo?

$9$ students

According to the Year 8 sports survey table, what is the most popular sport in class 8C?

Handball (with $11$ votes)

According to the Year 8 sports survey table, what is the total number of students in class 8F?

$24$ students ($12 + 9 + 3$)

Based on the Year 8 sports survey table, which class had the highest number of votes for badminton?

8F (with $12$ votes)

Based on the Year 8 sports survey table, which sport received the most votes across all six classes combined?

Water polo (with $60$ total votes)

According to the height line graph for Slesha and Ross, which twin was taller on their first birthday?

Slesha

According to the height line graph for Slesha and Ross, which twin was taller on their eighth birthday?

Ross

According to the height line graph for Slesha and Ross, at what ages were the twins the same height?

At ages $4$ and $5$

How is the general shape of the lines in the height graph for Slesha and Ross described?

Non-linear

In the monthly spending pie chart, which categories represent the largest and smallest expenses?

Largest: Rent; Smallest: Charity

In the monthly spending pie chart, what percentage of the total monthly spending is taken up by rent?

$$50\%$$

In the monthly spending pie chart, if food occupies $\frac{1}{4}$ ($25\%$) of the chart and costs $\$600$, what is the total monthly spending?

$\$2400$ ($\$600 \times 4$)

How is the general shape of the Australian dollar value graph over the $6$-month period described?

Linear

Based on the table of Australian dollar values, by how much did the dollar decrease over the first $3$ months (from month $0$ to month $3$)?

$\$0.09$ ($0.90 - 0.81$)