The line graph shows the amount of money Tim spent from July to December.
- Of the amount Tim spent in October, $200 was spent on food and the remaining amount was spent on transport. How much did he spend on transport in October?
- In which month did Tim spend $120 less than the previous month? Give your answer in this format. (Eg Jan)
(a)
Amount that Tim spent in October = $600
Amount that Tim spent on transport
= 600 - 200
= $400
(b)
To find a decrease in a line graph, look for a decreasing slope.
The 2 decreasing slopes are from July to August and October to November. Now, find the month when Tim spent $120 less than the previous month.
Amount that Tim spent in July = $240
Amount that Tim spent in August = $120
Amount that Tim spent in August less than July
= 240 - 120
=
$120 (✓)
Amount that Tim spent in October = $600
Amount that Tim spent in November = $460
Amount that Tim spent in November less than October
= 600 - 460
= $140 (x)
The month that Tim spent $120 more than the previous month = Aug
Answer(s): (a) $400; (b) Aug