The line graph shows the amount of money Ian spent from July to December.
- Of the amount Ian spent in August, $112 was spent on food and the remaining amount was spent on transport. How much did he spend on transport in August?
- In which month did Ian spend $260 more than the previous month? Give your answer in this format. (Eg Jan)
(a)
Amount that Ian spent in August = $540
Amount that Ian spent on transport
= 540 - 112
= $428
(b)
To find an increase in a line graph, look for an increasing slope.
The 3 increasing slopes are from July to August, August to September and November to December. Now, find the month when Ian spent $260 more than the previous month.
Amount that Ian spent in July = $320
Amount that Ian spent in August = $540
Amount that Ian spent in August more than July
= 540 - 320
= $220 (x)
Amount that Ian spent in August = $540
Amount that Ian spent in September = $800
Amount that Ian spent in September more than August
= 800 - 540
=
$260 (✓)
Amount that Ian spent in November = $500
Amount that Ian spent in December = $780
Amount that Ian spent in December more than November
= 780 - 500
= $280 (x)
The month that Ian spent $260 more than the previous month = Sep
Answer(s): (a) $428; (b) Sep