A class measured the radius and circumference of various circular objects. The results are plotted on the graph. Why might the measured radii and circumferences not be exactly proportional?

Because it goes through the origin and the line is straight but there is still the empty space between the 4 and 6

Step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)