Exponential Functions
What is the domain of f(x)= 3x?
What is: all reals
What is the domain of f(x)= log(x)?
What is: x>0
What is the formula used for continuously compounded interest?
What is: A = Pert
A student council wants opinions about a new dress code. What is the population?
What is: all students in the school
Is " What is the tallest building in New York City?" a statistical questions?
What is: No
What is the horizontal asymptote of f(x)= 5 (1/3)x - 4?
What is: y = -4
What is the vertical asymptote of f(x)= ln(x)?
What is: x = 0
What is the formula used for compound interest?
What is: A = P (1 +(r/n))nt
What is: Systematic sampling
If you want to determine the effect exercise has on resting heart rate, what type of study should be conducted?
What is: An experiment
Describe the transformations from g(x)= 4(2)x to f(x)= 4(2)x-5 + 6.
What is: right 5, up 6
What is the x- intercept of f(x)= log(x)?
What is: (1,0)
A bank account earns interest monthly. What value represnets the number of compounding periods in one year?
What is: n = 12
Selecting one randomly chosen store and surveying every employee there is what type of sampling method?
What is: Cluster Sampling
For skewed data, which measure of center is generally preferred?
What is: The median
What is the y- intercept of f(x)= 3x?
What is: (0,1)
Convert 5x= 125 to logarithmic form.
What is: log5(125) = x
Is the equation y = 5000(0.64)x an example of growth or decay?
What is: decay
If 20% of students surveyed are 18 years old, is 20% a statistic or a parameter?
What is: Statistic
Find the inverse of y= 4x.
What is: f-1(x)= log4(x)
A video starts with 8192 views and decreases by 20% each day. About how many days until view drop below 100?
What is: about 10 days
Solve log (3x-5) = 2
What is: x = 35
Which investment earns more over the same period: monthly compounding or continuous compounding?
What is: continuous compounding
A histogram is bell- shaped and symmetric. What type of distribution does it represent?
What is: Normal Distribution
Find the inverse of f(x) = log2(x-3)+7.
What is: f-1(x)= 2x-7+3