The line graph shows the amount of money Jack spent from July to December.
- Of the amount Jack spent in September, $150 was spent on transport and the remaining amount was spent on food. How much did he spend on food in September?
- In which month did Jack spend $280 more than the previous month? Give your answer in this format. (Eg Jan)
(a)
Amount that Jack spent in September = $490
Amount that Jack spent on food
= 490 - 150
= $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 Jack spent $280 more than the previous month.
Amount that Jack spent in August = $210
Amount that Jack spent in September = $490
Amount that Jack spent in September more than August
= 490 - 210
= $280 (x)
Amount that Jack spent in November = $170
Amount that Jack spent in December = $450
Amount that Jack spent in December more than November
= 450 - 170
=
$280 (✓)
The month that Jack spent $280 more than the previous month = Dec
Answer(s): (a) $340; (b) Dec