Write a rule for the table
x -1 0 1 2
y 1/4 1/2 1 2
What is y = 1/2*2 to x power?
100
Make a table for y = (1/5) to x. Use a domain of -2 to 2.
What is x -2 -1 0 1 2
y 25 5 1 1/5 1/25
100
How does the graph y = 3 * 2 to x compare to y = 2 to x?
- Give one similarity and one difference.
Similarity - Both increase.
Difference - The first increases three times faster
100
Write a rule for the function.
x -1 0 1 2
y 25 5 1 1/5
What is 5*(1/5) to x?
200
Write in standard form 9.045 x 10 to the -4 power
What is 0.0009045?
200
How does the graph y = -2 to x compare to y = 2 to x?
What is it decreases and the second one increases?
They increase/decrease at the same rate?
200
Laura's bought a car for $17,500. It decreases in value of 7% a year. After 4 years, how much will the car be worth?
What is $13,090.91?
200
Write a rule for the function.
x -2 -1 0 1 2
y 1/2 2 8 32 128
What is y = 8*4 to x
200
How does the graph y = -3 to x compare to y = 3 to x? Give one similarity and one difference.
Similarity - both increase/decrease at the same rate
Difference one increases and one decreases.
300
Write in scientific notation 0.0003701
What is 3.701 times 10 to -4 power?
300
Jamie has $350 and invests it in the bank for 9% interest compounded yearly. After 7 years, how much money will there be?
What is $639.81
300
Graph the equation y = (2/3) to x. Use a domain of -2 to 2.
What is x -2 -1 0 1 2
y 9/4 3/2 1 2/3 4/9
300
There are 5600 bacteria in a petry dish. The number of bacteria can be found using y = 5600(2) to x, where x is the number of hours. How many hours will it take before there are 44,800?
What is 3 hours?
300
Graph y = 2*(1/6) to x. Use a domain of -2 to 2
What is x -2 -1 0 1 2
72 12 2 1/3 1/9
400
Simplify, write in scientific notation.
(5 x 10 to 5)(3.2 x 10 to 3)
What is 1.6 x 10 to the 4th power?
400
Lenny has 4 bunnies. Every month the number of bunnies he has doubles. After m months, he will have B bunnies. The equation B = 4*2 to the m give the number of bunnies. How many will he have after 5 months?
What is 128 bunnies?
400
The number of rainbow fish are decreasing at a rate of 8%. There are currently 800 fish in the pond. Write an exponential function to model the situation.
What is y = 800(.92) to x?
400
Does the following table show growth or decay?
x -2 -1 0 1 2
y 4 1 1/4 1/16 1/64
What is decay?
400
A TV costs $950 and the value decreases by 9% every year. Write an exponential function to model the situation.
What is y = 950(0.91) to x.
500
Simplify, write in scientific notation.
(4.1 x 10 to 3)(6.3 x 10 to 2)
What is 2.583 x 10 to the 6th power?
500
Graph y = 2*3 to x. Use a domain of -2 to 2.
What is check graphs.
x -2 -1 0 1 2
y 2/9 2/3 2 6 18
500
In Goodwintown there is some radiation. There is 820 pounds of radiation. It is decreasing by 40% each year. The formula y = 820*.6 to x. How many pounds of radiation are there after 6 years?
What is 38.26 pounds?
500
Jacob has $325 and invests it into a bank that receives 4.5% compounded annually. How much money will there be after 8 years?
What is $462. 18?
500
A truck costs $21,500. It decreases 4% a year. What is the value after 7 year?