Interpreting Graphs
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SAT Math › Interpreting Graphs
Bonnie is conducting a survey in her class to understand how many fruits her peers eat on a daily basis. How many more of her classmates eat 1 fruit than 3 fruits a day?
1
2
3
5
Explanation
According to the graph, 8 of her peers eat 1 fruit daily while 3 of her peers eat 3 fruits. 8 - 3 = 5.
Kevin is selling cups of lemonade to raise money to buy a bike. Overnight, at some point during the week, Kevin changes the recipe of his lemonade to make it even more tasty, and his sales increase the next day. Which night could this have been?
I) Monday
II) Friday
III) Thursday
I
I and II
II and III
I, II, and III
Explanation
The graph shows an increase (a positive slope) from Monday to Tuesday and Friday to Saturday. However, there is a sharp decline from Thursday to Friday.
Newland County is tracking the number of public schools in the county from 1920 to 2010. How many more schools were open in 1960 than what would be predicted by the line of best fit?
6
5
4
3
Explanation
According to the graph, the number of schools open in 1960 was 11. The line of best fit for an x-value of 1960 shows a y-value of 8. This question requires you to use both the scatter plot data points as well as the trendline.
Bonnie is conducting a survey in her class to understand how many fruits her peers eat on a daily basis. What is the mode of this graph?
0
1
2
5
Explanation
The mode is the data value that occurs most often. 8 of her peers eat 1 fruit daily.
Kevin is selling cups of lemonade to raise money to buy a bike. The number of cups sold on Friday is what fraction of the number he sold on Saturday?
Explanation
According to the graph, he sold 4 cups on Friday and 13 cups on Saturday. Thus, the fraction of cups sold on Friday compared to Saturday is 
Newland County is tracking the number of public schools in the county from 1920 to 2010. How many more schools were open in 1990 than 1940?
15
14
13
11
Explanation
According to the graph, the number of schools open in 1990 was 15 and in 1940 was 2. Be sure to read the data associated with the data points, not the trendline.
Newland County is tracking the number of public schools in the county from 1920 to 2010. In which years did the county shut down schools?
I) 1940
II) 1970
III) 2010
I
I and II
II and III
I, II, and III
Explanation
According to the graph, the number of schools decreased from 1960 to 1970 (13 to 9) and 2000 to 2010 (17 to 15). From 1930 to 1940, a new school was added.
Bonnie is conducting a survey in her class to understand how many fruits her peers eat on a daily basis. How many of Bonnie’s peers eat less than 2 fruits daily?
8
15
11
4
Explanation
According to the graph, 3 of her peers eat 0 fruits daily and 8 of her peers eat 1 fruit daily. This gives us 11 classmates. Careful, the question asks for less than 2, not less than or equal to 2 fruits (which would have given us 15 peers).
Kevin is selling cups of lemonade to raise money to buy a bike. If he sells each cup for $0.50, what is the maximum amount of money he made on a single day this week?
$11
$10
$2
$22
Explanation
The correct answer is $11. He would make the most money on the day he sold the most cups of lemonade. On Thursday, he sold 22 cups. Since each cup costs $0.50, he made $11 that day.
Kevin is selling cups of lemonade to raise money to buy a bike. How many more cups did Kevin sell on his most profitable day than his least profitable day?
22
18
16
2
Explanation
According to the graph, he sold 22 cups on Thursday and 4 cups on Friday.