A function is defined as a set of points for every x-value, there is only one y-value.
So, you can't have two y-values for every x-value.
Thus, (B) would be a relation, because x = 7 has two y-values, and as such, doesn't satisfy the condition of a function.
Circumference = 2 x radius x pie (3.14)
<span>82.896 = 2 x 3.14 x r </span>
<span>82.896 = 6.28 x r </span>
<span>r = 82.896 / 6.28 </span>
<span>r = 13.2
hoepfully this answer helps you</span>
The answer to the question
9x+39. i think i would be that
