C=[pi thing)d
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9 feet is greater than because 1 yard is = to 3 feet hope this helps :)
Y = 5x is the answer and you can double check by looking at the coordinates
Y=4x²-7x+13
y-13=4(x²-(7/4)x)
y-13+4*(7/8)²=4(x²-2*(7/8)x+(7/8)²)
y-13+4*(7/8)²=4(x-(7/8))²
y-13+ 3.0625=4(x-0.875)²
y-9.9375=4(x-0.875)²
y=4(x-0.875)² +9.9375
The formula for this question is P(n) = P*(1+r)^n
So the initial population is 8600 or P, and n can be the number of years. r is the rate it grows, 3% or 0.03.
Plug in these values
P = 8600
r = 0.03
n = 3
into P(n) = P*(1+r)^n