<h2>
Answer:</h2>
Option: C is the correct answer.
C) The equation is y = 2x, and the height is 40 inches.
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Step-by-step explanation:</h2>
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:

Here we have:
(a,b)=(0,0) and (c,d)=(20,40)
Hence, the equation of line of best fit is:

Hence, the equation is:
y=2x
Also when x=20 we have:
y=40
Answer:
21 inches
Step-by-step explanation:
to get from 4 to 14 you multiply by 3.5 so you multiply 6 by 3.5 to get 21
Umm isn’t there more context to this question? I rlly can’t help if you don’t add more detail
Answer:
c
Step-by-step explanation:
standard form is y=mx+b
Number one is a square number two is quadrillateral