The line graph shows the amount of money Liam spent from July to December.
- Of the amount Liam spent in October, $136 was spent on transport and the remaining amount was spent on food. How much did he spend on food in October?
- In which month did Liam spend $240 less than the previous month? Give your answer in this format. (Eg Jan)
(a)
Amount that Liam spent in October = $440
Amount that Liam spent on food
= 440 - 136
= $304
(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 Liam spent $240 less than the previous month.
Amount that Liam spent in July = $280
Amount that Liam spent in August = $40
Amount that Liam spent in August less than July
= 280 - 40
=
$240 (✓)
Amount that Liam spent in October = $440
Amount that Liam spent in November = $340
Amount that Liam spent in November less than October
= 440 - 340
= $100 (x)
The month that Liam spent $240 more than the previous month = Aug
Answer(s): (a) $304; (b) Aug