Exponential growth functions | Exponential and logarithmic functions | Algebra II | Khan Academy

In an exponential function like y = 3^x, where is the variable 'x' located?

• In the base

• In the exponent

• As a coefficient

• As a constant

For the exponential function y = 3^x, what is the value of y when x = 2?

• 3

• 6

• 9

• 27

How does the value of y change in the function y = 3^x as x increases from 0 to positive numbers?

• It decreases slowly.

• It stays the same.

• It increases very quickly.

• It becomes negative.

If a chain letter starts with 10 people in Week 1, and each person sends it to 10 new people every week, how many people will receive the letter in Week 6?

• 100,000

• 1,000,000

• 10,000,000

• 100,000,000