Exponential Equations and Graphs

Which equation is represented by the table?

• y = 40(2)^x

• y = 40(1/2)^x

• y = 40 - 2x

• y = 40 - 1/2x

What is the y-intercept of the graph?

• 25

• 5

• 3

Which equation matches the graph?

• y=2(2)^x

• y=2(1/2)^x

• y=2^x

• y=1/2(2)^x

• the initial value/y-intercept

• the growth or decay factor/ multiplier

• the output

• the input

What is the a-value (or initial value or y-intercept) for the function: f(x) = 800(0.85)^x?

• 800

• 0.85

• 0.15

• x

What is the b-value (or growth and decay factor/multiplier) for the function: f(x) = 800(0.85)^x?

• 800

• 0.85

• 0.15

• x

A particular type of cell triples in number every hour. Which function can be used to find the number of cells present at the end of h hours if there are initially (inicialmente) 6 of these cells?

• f(h) = 3(6)^h

• f(h) = 6x^h

• f(h) = 6(3)^h

• f(h) = 3(6h)

Which equation matches the table?

Which equation matches the table?

Which equation is represented by the table?