Find the equation for an exponential that passes through the following points:
(-1, 35/12) and (2, 126/25)
Having a lot of trouble on this, thanks for the help
Okay, you have two parameters and two given points. We are told:
$\displaystyle y(-1)=\frac{35}{12}$
$\displaystyle y(2)=\frac{126}{25}$
Now using $\displaystyle y(x)=y_0b^x$, what is your system of equations?
I hope this helps:
$\displaystyle y(-1)=\frac{\35}{12}=ab^{-1}. \frac{35b}{12}=a$
Using a similar process for the second point allows you to solve for b, and consequently for a.