Functions
What is f(x) = y?
Domain refers to these values
What is x's?
Identify the independent and dependent quantities.
EX: The number of items in a carton depends on the size of the carton.
What is independent quantity is size of the carton and dependent quantity is the number of items in the carton?
What is a table of values?
What is a set of coordinates?
f(x) = 3x. What is f(2)? Your answer is an x or y value
What is f(2) = 6, a y value?
Makes a function different from a general relation.
What is cannot have two outputs to one input?
What is one input to one output?
Rewrite the domain correctly:
D:{-2, 1, 0, 2, 0, 1, 3}
What is D{-2, 0, 1, 2, 3}?
g(x) represents the number of people at a party after x hours.
g(1) = 10
What is after 1 hour, there are 10 people at a party?
An example of a table of values that is not a function.
What is anything with two output values to a single input value?
What is x = 7/11?
Let f(x) represent the amount of rain, in inches, after x minutes. f(1/2) represents what?
What is the amount of rain, in inches, after 1/2 minutes?
Interval notation is used for
What is infinite sets?
What is domain and range on a graph of a function?
g(x) represents the number of people at a party after x hours.
Use function notation to represent 276 people at the party after 3 hours.
What is g(3) = 276?
An example of 3 coordinates on the function h(x) = 9x -11.
What is _____?
g(2) = 11. What is the y value when x = 2
What is 11?
What is x = 2?
What is an uncountable domain?
Let h(x) = 10x + 10. Evaluate h(3).
What is h(3) = 40?
The y coordinate written in function notation when x = 3 on the function g(x).
What is g(3)?
g(x) = 3x + 1. g(10)
What is g(10) = 31?
State the (x, y) coordinate on the function f(x) when x = 2 using function notation
What is (2, f(2))?
What is a countable domain?
Identify the following as an x or y value.
h(3)
3 in h(3)
What is h(3) is a y value and 3 is an x value?
Rewrite the expression f(x) = 4x - 1 when f(x) = 8. Find x.
What is 8 = 4x -1 and x = 9/4.
g(x) = 3x + 10. What is x when g(x) = 11
What is x = 1/3?