Exponential Growth & Exponential Decay

Question

Which equation in the form f(x)=C*a^x for an exponential function has initial value 2300 and growth factor 3.5?

a) y=2.3*3.5^x

b) y=3.5*2300^x

c) y=2300*3.5^x

d) y=3.4*5.8^x

Answer 1

initial value is 2300, so f(0) = 2300

C*e^0 = 2300 which forces C = 2300

this eliminates all of the choices except option C

y = 2300 * (3.5)^x