Math 3 - Unit 2 Test Review

If the growth rate is .75%,what is the correct growth factor?

1.0075

The population of a small town can be modeled by the exponential function P=14,512(1.03)^x,where t is the number of years after 2005. what is the significance of the value 14,512? 1.03?

14,512 is starting population 1.03 is the growth factor

Suppose a population of 250 birds doubles in size every 3 months . How many birds will there be after 2 years?

64,000

Circle the equation the does NOT model exponential growth. a. y=3^x-4 b. y=2(1/4)^x c. y=1/2(3)^x d. y=6(5/3)^x

b. y=2(1/4)^x

what is 5^x = 125 in logarithmic form?

log(5)125=x

What is the x and y-intercept of y=3(2)^x-2

x-intercept: (-.585,0) y-intercept:(0,1)

Write the exponential equation that shows a reflection over the x- axis, vertical compression of 1/5,and a shift up 3 units ?

y=-1/5(2)^x+3