Domain and Range
Discrete vs. Continuous Domains
Func-tions
Function Notation
A worksheet
100
Does the domain represent the x-values or the y-values?
x-values
100
How do you measure range?
What is from top to bottom?
100
When x-values repeat, is it a function or not a function?
What is not a function?
100
Evaluate the function when x = 1 f(x) = 3x + 7
f(x) = 10
100
Look at #s 15 - 18. Assign an equation to each graph.
What is
15. B 16. D 17. C 18. A
200
Does the range represent the x-values or the y-values?
y-values
200
If the domain involves time, is the domain discrete or continuous?
Continuous
200
How can you tell when a graph/function is continuous?
What is when the points are connected by a line?
200
Evaluate the function when x = -1 and x = 2.
f(x) = 2x - 5
f(x) = -7 when x = -1
f(x) = -1 when x = 2
200
Suppose an investment of $2000 doubles every 8 years. How much is it worth after 24 yrs?____ 32years?____
What is $16000 and $32,000?
300
What is the Domain and Range of the function?
What is
D = [1,5] or 1 ≥ x ≥ 5
R = [1,6] or 1 ≥ y ≥ 6
300
If the domain involves people, is the domain discrete or continuous?
What is Discrete?
300
Is the graph Discrete or Continuous and is it a function?
What is Discrete and not a function?
300
Suppose an investment of $500 doubles every 15 years. How much is it worth after 30 yrs?____ 45 years?____
What os $2000 and $4000?
300
An investment of $10000 is doubled in value every 13 years. How much is in the investment after 52 years? After 65 years?
What is 160,000 and 320,000
400
What is the range is {1,3,4,5,6} and the domain is {2, 3, 5, 7, 9}?
400
What kind of line do we graph for a discrete function?
Dotted Line
400
The input of one function is length. The input of another function is shirts. Which function has a continuous domain?
What is the input of the function that is length?
400
Find the value of x for which f(x) = 7 f(x) =½x + 3
x = 8
400
A population of 100 insects triples in size every month. The function (100)(3)^x
What is 53144100?
500
Find the domain and range.
What is
Domain: 1 ≥ x ≥ 12 or [1, 12]
Range: -20 ≥ y ≥ 30 or [-20, 30]
500
Continuous or Discrete.
Continuous
500
Look at the first graph below. What is the domain and Range? Is it a function?
What is
is a function, state whether it is discrete, continuous or neither.
1) Domain: -3 and -2
Range (−∞, ∞)
Not A Function
500
Evaluate each function for the domain {-2, -1, 0, 1, 2, 3}. y = (2/3)^x
What is 2.25, 1.5, 1, .667, 4, .296?
500
What is the formula for solving an exponential function? AND What is the formula for solving a linear function?
What is ab^x and what is y =mx + b?