Questions:

1. Find a linear model for the data. Write it in the form: [tex] y = mx + b [/tex]
[tex] y = 14.2992x - 4.5199 [/tex]

2. Use the linear model to predict revenue if 121 patrons attend.



Answer :

To solve this problem, we need to use the given linear model [tex]\( y = 14.2992x - 4.5199 \)[/tex], where [tex]\( y \)[/tex] represents the revenue and [tex]\( x \)[/tex] represents the number of patrons attending. We are asked to predict the revenue when 121 patrons attend.

Here's a step-by-step breakdown:

1. Identify the linear model and the parameters:
- The linear model is given by [tex]\( y = 14.2992x - 4.5199 \)[/tex].
- The slope ([tex]\( m \)[/tex]) is 14.2992.
- The y-intercept ([tex]\( b \)[/tex]) is -4.5199.

2. Substitute the given value of [tex]\( x \)[/tex] (the number of patrons) into the linear model:
- The number of patrons [tex]\( x \)[/tex] is 121.

3. Calculate the revenue [tex]\( y \)[/tex] by substituting [tex]\( x \)[/tex] into the linear equation:
- Substitute [tex]\( x = 121 \)[/tex] into the equation [tex]\( y = 14.2992 \cdot x - 4.5199 \)[/tex]:
[tex]\[ y = 14.2992 \cdot 121 - 4.5199 \][/tex]

4. Evaluate the expression:
- First, multiply the slope by the number of patrons:
[tex]\[ 14.2992 \cdot 121 = 1730.2032 \][/tex]
- Then, subtract the y-intercept:
[tex]\[ 1730.2032 - 4.5199 = 1725.6833 \][/tex]

5. State the final result:
- Therefore, the revenue predicted for 121 patrons attending is [tex]\( 1725.6833 \)[/tex].

So, the predicted revenue when 121 patrons attend is $1725.68 (rounded to two decimal places).