The amount of pollution in the air will continue to double every 20 years if we do not reduce our daily emissions. If there are 70 million tons of pollution in the air now, how many tons will there be in x 20-year periods?
Joaquin earns $2 for each magazine sale. Each time he sells a magazine, he also gets a five-dollar tip. How much money will he make by selling x magazines?
The population of New York has been increasing by about 65,000 people per year since the 2010 census was taken. If the population in 2010 was 8,175,133, what should it have been after x years?
Sandra wants to buy a new iPhone for $989. She calculates that if she pays a down payment of 9% and pays $100 per month, she will be able to pay off the phone by December. What month is it now?
Is the following sequence arithmetic or geometric?
1.5, 3, 6, ___, 24, ___
If the sequence below is arithmetic, what is its common difference. If it is geometric, what is its common ratio.
1.5, 3, 6, ___, 24, ___
Is the following sequence arithmetic or geometric?
24, 12, 6, ___, ___
If the sequence below is arithmetic, what is its common difference. If it is geometric, what is its common ratio.
24, 12, 6, ___, ___
Is the following sequence arithmetic or geometric?
4, 7, 10, ___, 16, ___
If the sequence below is arithmetic, what is its common difference. If it is geometric, what is its common ratio.
4, 7, 10, ___, 16, ___
Match the features to their functions
Decreasing = x<0
Positive = never
Range = all real numbers
Range = y≥1
Positive = x>3.5
Negative = never
y-intercept = (0, -7)
Decreasing = never
Decreasing = always
x-intercept(s) = none
Negative = x<3.5
Increasing = x>0
x-intercept(s) = (3.5, 0)
Vertex = (0, 1)
Asymptote: y = 0
Domain = all real numbers
Negative = always
y-intercept = (0, 1)
Increasing = always
y-intercept = (0, -3)
Range = y<0
Positive = always
Increasing = never
y = 2x - 7
y = 3x2 + 1
y = -3(2)x