The line graph shows the amount of money Harry spent from July to December.
- Of the amount Harry spent in September, $162 was spent on food and the remaining amount was spent on clothes. How much did he spend on clothes in September?
- In which month did Harry spend $180 more than the previous month? Give your answer in this format. (Eg Jan)
(a)
Amount that Harry spent in September = $468
Amount that Harry spent on clothes
= 468 - 162
= $306
(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 Harry spent $180 more than the previous month.
Amount that Harry spent in August = $368
Amount that Harry spent in September = $468
Amount that Harry spent in September more than August
= 468 - 368
= $100 (x)
Amount that Harry spent in November = $68
Amount that Harry spent in December = $248
Amount that Harry spent in December more than November
= 248 - 68
=
$180 (✓)
The month that Harry spent $180 more than the previous month = Dec
Answer(s): (a) $306; (b) Dec