Application Exponential

What type of function is f(x)=2(1/7)^x ?

• Exponential Growth

• Linear

• Exponential Decay

• None of the Abovee

A savings account with $2000 earns 1.25% interest each year. Which function models this situation? 

• y = 2000⋅1.25^t

• y = 2000⋅.0125^t

• y = 2000⋅1.0125^t

• y = 2000⋅1.125^t

What it the transformation?

• Vertical Translation up 5

• Vertical Translation down 5

• Horizontal Translation left 5

• Horizontal Translation right 5

Which curve would be the steepest?

• y = 3 (0.1)^x

• y = 3 (10)^x

• y = 3 (1.95)^x

• y = 3 (0.95)^x

Which curve would be the flattest?

• y = 3 (0.1)^x

• y = 3 (10)^x

• y = 3 (1.95)^x

• y = 3 (0.95)^x

What is the asymptote of this function:
 f(x) = 2^x-1 + 3

• x = 1

• x = -1

• y = 3

• y = - 3

Using the parent function y=3^x what would the graph of y=3^x+1 look like?

• Horizontal shift left one unit

• Horizontal shift right one unit

• Vertical shift up one unit

• Vertical shift down one unit

What transformations have happened to y = 2^x if the new equation is y = 2^(x+3) -6

• It stayed the same

• up 3, left 6

• right 3, down 6

• left 3, down 6

Find a₁₂ in the sequence -1, -3, -9, -27, ...

• -177,147

• -19,683

• -59,049

• 118,098

Write the exponential regression equation for the data.

• Y=8.16(2.7)^x

• Y=81.6(2.7)^x

• Y=8.16(.27)^x

• Y=8.16(27)^x