## anonymous 5 years ago write the equation for the exponential function that passes through the points (0.5) and (1,15)

Hm. I assume an exponential function means in the form $$y = ae^x$$?

2. anonymous

yes

Ok, so you basically have two equations and two unknowns if you plug in your two values: \begin{align} y &= ae^x\\ 5 &= ae^0\\ 15 &= ae^1 \end{align} You have a huge advantage because one of the equations is $$ae^0$$. What's e^0?

4. anonymous

5. anonymous

shadow youre missing something. y = Ae^(kt). there should be an A and a k. or two parameters. Shadow, you have one parameter , just the a.

6. anonymous

or if you want to use x, then y = Ae^(kx)