ANSWER CORRECTLY OR DONT ANSWER AT ALL

5)  A

6) C

7) B

8) D

9) D

10) A

11) C

12) C

Step-by-step explanation:

5) The graph of an exponential decay function approaches zero, as the values of x grows bigger and bigger.

From the graph, it is only the first graph the has the end behavior of an exponential decay function.

The correct answer is A)  I only  

6) The given function is .

From x=1 to x=3, the grows by a factor of

From x=5 to x=7, the exponential function grows by a factor of

The correct answer is C.

7) The initial value of the car is $20,000.

Since the car loses 20% of its value every year, it has a multiplicative rate of change of

Hence the value will decay exponentially.

The correct answer is B.

8) Let the initial population be , then after 210 minutes,

This implies that:

With initial population is , we want to find the population after 630 minutes.

The correct answer is D

9)

Let the initial population be , then after 60 minutes,

This implies that:

With initial population is , we want to find the population after 240 minutes.

The correct answer is D

10) The initial cost is $40 the unit rate per visit to the Gym is

$2

The total cost y, is given by: , where x is the number of visit.

With $90, you substitute y=90 and solve for x.

The correct answer is A

11) Let , then

Therefore the correct answer is C.  

12) Let , then

This implies that:

The correct answer is C

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4

c

step-by-step explanation: