1.find the first, fourth, and eighth terms of the sequence.
a(n) = -5 x 3^n^-1

2.evaluate the function rule for the given value for x = -5.
f(x) = 3^x

3. evaluate the function rule for the given value for x = -2
y = 12 x 3^x

4. identify the initial amount a and the growth factor b in the exponential function.
f(x) = 620 x 7.8^x

5. evaluate the function rule for the given value for x = 3.
f(x) = 15^x

6. identify the initial amount a and the growth factor b in the exponential function.
a(x) = 680 x 4.3^x

7. find the first, fourth, and eighth terms of the sequence. a(n) = -2 x 5^n^-1