Question

F(x)=4(5)^x
Evaluate the exponential function for x=-2

Answer 1

When X=2 the function will equal 100
We can find this by using substitution and PEMDAS.
All we have to do is plug in X so
F(2) =4(5)^2
now we use pemdas to evaluate starting with the exponent first
4(25)
Now we multiply
100
Hope this helps :)