Answer:
Option: C is the correct answer.
C) The equation is y = 2x, and the height is 40 inches.
Step-by-step explanation:
We could clearly observe that the line of best fit passes through the point (0,0) and (20,40)
We know that the equation of a line passing through point (a,b) and (c,d) is calculated by the help of the formula:
[tex]y-b=\dfrac{d-b}{c-a}\times (x-a)[/tex]
Here we have:
(a,b)=(0,0) and (c,d)=(20,40)
Hence, the equation of line of best fit is:
[tex]y-0=\dfrac{40-0}{20-0}\times (x-0)\\\\\\y=\dfrac{40}{20}\times x\\\\\\y=2x[/tex]
Hence, the equation is:
y=2x
Also when x=20 we have:
y=40
