Topic 5 Review

Front

What is the domain of the function f(x) = 5^x?

Back

(-∞ , ∞)

Front

Which equation matches the graph of an exponential function?

Back

y=2(2^x)

Front

What is the equation of the function represented by the table of values?

Back

y = 5(2^x)

Front

What is the range of the function f(x) = 5^x?

Back

(0,∞)

Front

What type of function do the points {(-1,2),(0,10),(1,50),(2,250),(3,1250)} represent?

Back

Exponential

Front

Define an exponential function.

Back

A function of the form f(x) = a(b^x), where a is a constant and b is a positive real number.

Front

What is the general form of an exponential growth function?

Back

f(x) = a(b^x) where b > 1.

Front

What is the general form of an exponential decay function?

Back

f(x) = a(b^x) where 0 < b < 1.

Front

How do you identify an exponential function from a set of points?

Back

If the ratio of consecutive y-values is constant, the function is exponential.

Front

What is the y-intercept of the function f(x) = 5^x?

Back

(0, 5) because f(0) = 5^0 = 1.