Answer:
4.00
Explanation:
Given
x: 2 , 5 , 8 , 12
y: 8.50, 15.25, 22.00. 31.00
Required
Determine the y intercept
First, we calculate the slope:
Where
Next, we calculate the equation:
Where:
The equation becomes:
Make y the subject
Take
; to get the y intercept
Hence, the y intercept is 4.00