Given the information, we can model the capacity of Tank A with the following relation function:
[tex]y=124+9x[/tex]where 'y' are the liters inside the tank and x is the minutes that pass.
To find out how many liters of water are n Tank A after 80 seconds, first we must covert 80 seconds to minutes:
[tex]80\sec =\frac{80}{60}\min =\frac{8}{6}\min =\frac{4}{3}min[/tex]then, doing x=4/3, we get:
[tex]\begin{gathered} x=\frac{4}{3} \\ \Rightarrow y=124+9(\frac{4}{3})=124+(3\cdot4)=124+12=136 \\ y=136 \end{gathered}[/tex]therefore, after 80 seconds, there are 136 liters in Tank A.
The expression fo know how many liter