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

1. Of the amount Brandon spent in May, $164 was spent on food and the remaining amount was spent on transport. How much did he spend on transport in May?
2. In which month did Brandon spend $100 less than the previous month? Give your answer in this format. (Eg Jan)

(a)
Amount that Brandon spent in May = $400

Amount that Brandon spent on transport
= 400 - 164
= $236

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

The 2 decreasing slopes are from March to April and April to May. Now, find the month when Brandon spent $100 less than the previous month.

Amount that Brandon spent in March = $720
Amount that Brandon spent in April = $620

Amount that Brandon spent in April less than March
= 720 - 620
= $100 (✓)

Amount that Brandon spent in April = $620
Amount that Brandon spent in May = $400

Amount that Brandon spent in May less than April
= 620 - 400
= $220 (x)

The month that Brandon spent $100 more than the previous month = Apr

Answer(s): (a) $236; (b) Apr