28/40 is the final answer
The 20th percentile of your distribution is x = 11.48 inches, the 2nd selection.
Linear is 4
Quadratic is 2
Cubic is 3
Step-by-step explanation:
Equation of a line is y = mx + c
where
m is the slope
c is the y intercept
To find the equation of a line given two points first find the slope of the line and use the formula
y - y1 = m( x - x1) to find the Equation of the line using any of the points given
Slope of the line using points
(3,2) and (4,6) is

So the equation of the line using point
( 3 , 2 ) and slope 4 is
<h3>y - 2 = 4( x - 3)</h3>
Hope this helps you