The line graph shows the amount of money John spent from July to December.
- Of the amount John spent in September, $114 was spent on clothes and the remaining amount was spent on food. How much did he spend on food in September?
- In which month did John spend $160 more than the previous month? Give your answer in this format. (Eg Jan)
(a)
Amount that John spent in September = $454
Amount that John spent on food
= 454 - 114
= $340
(b)
To find an increase in a line graph, look for an increasing slope.
The 2 increasing slopes are from August to September and November to December. Now, find the month when John spent $160 more than the previous month.
Amount that John spent in August = $234
Amount that John spent in September = $454
Amount that John spent in September more than August
= 454 - 234
= $220 (x)
Amount that John spent in November = $34
Amount that John spent in December = $194
Amount that John spent in December more than November
= 194 - 34
=
$160 (✓)
The month that John spent $160 more than the previous month = Dec
Answer(s): (a) $340; (b) Dec