The line graph shows the amount of money Tommy spent from January to June.

1. Of the amount Tommy spent in April, $128 was spent on food and the remaining amount was spent on transport. How much did he spend on transport in April?
2. In which month did Tommy spend $140 less than the previous month? Give your answer in this format. (Eg Jan)

(a)
Amount that Tommy spent in April = $460

Amount that Tommy spent on transport
= 460 - 128
= $332

(b)
To find a decrease in a line graph, look for a decreasing slope. 

The 2 decreasing slopes are from January to February and April to May. Now, find the month when Tommy spent $140 less than the previous month.

Amount that Tommy spent in January = $160
Amount that Tommy spent in February = $20

Amount that Tommy spent in February less than January
= 160 - 20
= $140 (✓)

Amount that Tommy spent in April = $460
Amount that Tommy spent in May = $180

Amount that Tommy spent in May less than April
= 460 - 180
= $280 (x)

The month that Tommy spent $140 more than the previous month = Feb

Answer(s): (a) $332; (b) Feb