Answer-
The exponential model best fits the data set.
Solution-
x = input variable = number of practice throws
y = output variable = number of free throws
Using Excel, Linear, Quadratic and Exponential regression model were generated.
The best fit equation and co-efficient of determination R² are as follows,
Linear Regression
Quadratic Regression
Exponential Regression
The value of co-efficient of determination R² ranges from 0 to 1, the more closer its value to 1 the better the regression model is.
Now,
Therefore, the Exponential Regression model must be followed.
(-2,0) (0,6) (1,0) this should be it
The equation: 6r-3=45
6r=48
Answer: r=8
(x,y)
y does't change makes it easier
frm 7 to -2
-2-7=-9
distance is 9