Question

The number of fish (f) in a fish tank increases when the number of algae blooms (a) decreases. Write the correct equation for this scenario, and solve for the number of fish when there are 4 algae blooms.

Algae Blooms Fish
10 10
25 4

Answer 1

algae = x
fish = y
\(\dfrac{4 - 10}{25 - 10} = \dfrac{-6}{15}\)


\(y = \dfrac{-6}{15}x + b\)

\(10 = \dfrac{-6}{15} * 10 + b\)


\(10 = -4 + b\)


\(6 = b\)

\(y = \dfrac{-6}{15} + 6\)

Answer 2

*\(y = \dfrac{-6}{15}x + 6\)

Answer 3

f = 1a; f = 4
f = .1a; f = .4
f = 100 over a; f = 25
f = 100 over a; f = 400
these are the ansers they gave me and im so confused