Growth
The range of value b
What is b>1?
The range of value b
What is 0<b<1?
A bacteria population is 10,000. It triples each day.
Which variable is independent? dependent?
What is independent=day and population=dependent?
A person's salary is $2,500 per month. She receives a 10% raise. Write the expression.
What is 2500(1.1)?
Value of n, When Compounded quarterly
What is n=4?
Account A starts with a balance of $200 and doubles every year. The amount in 3 years is
What is 1600?
A new bicycle sells for $300. It is on sale for 1/4% off the regular price. What is the expression?
What is 300(1-1/4)?
or
What is 300(3/4)?
The area covered by a city is 20 square miles. The area grows 6% each year since it was 20 square miles.
What is the equation in t years?
What is y=20(1.06)t?
Han’s summer job paid him $4,500 last summer. This summer, he will get a 25% pay increase from the company.
What is his Salary in 2 years
What is $7031.25?
Compounded semi-annually with a 26% annual interest rate .
What is the common factor?
What is 0.13 or 13%?
Bank account C starts with $10 and triples each week. The Bank will have how much money in 5 weeks
What is $2430?
What is the amount of coral 3 years before scientist studied the coral. Y=1200(2)^t
What is 150?
What is the average rate of change for the mold over 3 days?
days mold(mm)
0 1
1 2
2 4
3 8
What is 2.3?
The number of grams of a chemical in a pond is defined by f(x)=50(1/2)x
What is the average rate of change between day 0 and day 1?
What is about -25 grams?
The number of trees in a rainforest decreases each month by 0.5%. The forest currently has 2.5 billion trees.
Write an expression to represent how many trees will be left in 10 years.
What is 2.5 (0.995)12(10)?
Before a road trip, a car odometer reads 15,000 miles. During the trip, the car travels 65 miles per hour. How many miles in 5 hours?
What is 15325?
A phone that originally sold for $800 loses 3/5 of its value each year after it is released. After 2 years what is the phone worth?
What is $128?
After its second bounce, a ball reached a height of 80 cm. The rebound factor for the ball was 0.7. From approximately what height, in cm, was the ball dropped?
What is about 163?
Lin opened a savings account that pays 5(1/4)% interest annually and deposited $5,000.
If she makes no deposits and no withdrawals for 3 years, how much money will be in her account?
What is $5,829.57?
A person charges $100 to a credit card with a 24% nominal annual interest rate.
Assuming no other charges or payments are made, find the balance on the card, in dollars, after 1 year if interest is calculated: every 3 months
What is $126.25?
The height of a plant in mm is 7. It doubles each week. What expression represents the height in 4 weeks
What is 7(2)4?
Acetaminophen is a common pain reliever and fever reducer. Here are two points showing the amount of acetaminophen, in milligrams, in an adult's body at different times after they take a normal dose.
(0,1000)
(1,750)
Write an equation representing the amount of medicine remaining after t hours.
What is y=1000(3/4)t ?
The number of grams of a chemical in a pond is a function of the number of days, d, since the chemical was first introduced. The function, f , is defined by f(d)=550 (1/2)^d
What is the average rate of change between day 0 and day 7?
What is about -78 grams?
The equation c=400 (1.03)m represents the number of customers it has in terms of the number of months m.
If y is time in years, write an equation for the number of customers c as a function of the number of years y after the introduction of the ordering system.
what is c=400(1.03)12(y) ?
A credit card company compounds interest monthly, it calculates 2% per month. Initial value of $300
How much does the cardholder owe after 1 year without payment? What is the effective APR of this credit card?
What is About $380.47 in one year?
What is effective annual percentage rate 26.8%?