Cabs use a valuable commodity - gas! This table shows the average gas price in lowa City for the last 10 months.
1. Create a scatter plot of the data in the table. You can use Desm○s for that. Follow the directions and please make sure to submit your graph of the scatter plot.
A. Go to desmos calculator.
B. Click on the + sign on the top left corner, then select "table."
C. Put the values into the table (you can put Sep 2021 as x=0, Oct 2021 as
D. Now you have you scatter plot
2. What equation models the data (what is the equation for the line of best fit?) you can also use Desm○s to find this.
A. Start from the scatter plot that you built
B. On the next row where it says 2, type y1~mx1+b. Then it will automatically draw the line of best fit for yoh. It also gives you the slope (m), y-intercept (b) and the correlation coefficient (r). MAKE SURE TO WRITE THE EQUATION OF THE LINE OF BEST FIT.
3. Is there a trend in the data? Does it seem to have a positive, negative, or no correlation? Explain why.
4. How much do you expect the average gas price to be in December 2022? Explain how you got the answer.
