Question

Which equation represents an exponential function that passes through the point (2, 80)?

f(x) = 4(x)5
f(x) = 5(x)4
f(x) = 4(5)x
f(x) = 5(4)x

Answer 1

Hi,

`f(x)=5*4^x\\\\f(2)=4*4^2=5*16=80\\`

Explanation: