To graph Sara's earnings based on her hourly wage of $8 and the range of hours she works (0 to 20 hours per week), we first need to calculate her potential earnings.
The maximum earnings can be calculated as follows:
\[ \text{Maximum Earnings} = \text{Hourly Wage} \times \text{Maximum Hours} = 8 \text{ dollars/hour} \times 20 \text{ hours} = 160 \text{ dollars} \]
Given this range of potential earnings (from $0 to $160), a good y-axis scale would be one that can accommodate this range effectively.
Considering the options provided:
- 0-8 is too small since it does not cover her potential maximum earnings.
- 0-20 is also too small for the same reason.
- 0-200 appropriately includes all possible earning amounts from 0 to 160.
- 100-200 does not include the lower range of $0 to $99, which is quite important for this graph.
Therefore, the most reasonable scale for the y-axis would be 0-200.
3 answers