The line graph shows the amount of money Vaidev spent from July to December.
- Of the amount Vaidev spent in September, $165 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 Vaidev spend $280 more than the previous month? Give your answer in this format. (Eg Jan)
(a)
Amount that Vaidev spent in September = $552
Amount that Vaidev spent on food
= 552 - 165
= $387
(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 Vaidev spent $280 more than the previous month.
Amount that Vaidev spent in August = $372
Amount that Vaidev spent in September = $552
Amount that Vaidev spent in September more than August
= 552 - 372
= $180 (x)
Amount that Vaidev spent in November = $112
Amount that Vaidev spent in December = $392
Amount that Vaidev spent in December more than November
= 392 - 112
=
$280 (✓)
The month that Vaidev spent $280 more than the previous month = Dec
Answer(s): (a) $387; (b) Dec