Vocabulary
The set of all y-values.
Range
What is the domain of the following relation? {(5,-2),(-3,-2),(0,-2),(-2,-2)}
{-3,-2,0,5}
Domain are the labels on the ______axis?
X-Axis
Find f(3)?
f(x) = 2x -2
g(x) = 3x
h(x)=x/2
f(3)=2(3)-2= 4
Is the following relation a function? {(0,2),(-1,3),(3,2),(-4,5)}
yes
A set of ordered pairs
Relation
What is the range of the following relation? {(5,-2),(-3,-2),(0,-2),(-2,-2)}
y=-2
In the following function, what is the domain? (x or y?) y = 3x + 2
What is the X
What is h(-2)?
f(x) = 2x - 3
g(x) = 4x +2
h(x) = 2x^2
2(-2)^2 = 2(4) = 8
Is the following relation a function? {-2,2),(0,1),(-2,3),(3,-1),(0,3)}
No
100< y<500 is the elevation in feet, what does it represent?
Range is between 100 and 500 feet
A snow vendor collects data on the number of snow cones he sells per day and the daily temperatures? Would the number of snow cones be on the x-axis or y-axis?
y-axis
In this function, which part of the function represents the y-variable or dependent variable? (f(x) or x?) f(x)=3x +2
f(x) represents the y-variable
True or False? A function can have repeated y-values?
True
A set of numbers or coordinates written in the form (x,y)
Ordered Pair
What is the range of the function below? y = 3x {Domain: 0,1,2,3,4)}
{0,3,6,9,12}
A teacher wants to see if there is a relationship between her students' test scores and the amount of time they study. What is the domain( x-values)?
The amount of time they study
Find x if f(x)=10?
f(x) = x/2
20, because 20/2 = 10
Functions cannot have repeated ___________.
A graph, table or mapping that shows no repeated x-values.
Function
What is the domain of the function below? y = 3x Range: {0, 3, 6, 24}
Domain: {0, 1, 2, 8}
In the following equation, what represents the range?
P = 4s + 10
P
What is the range of the function below if the domain is {0,1,2,3,4}? f(x) = 2x-1
{-1,1,3,5,7}
What is the name of the method used to determine whether a graph is a function or not?
The Vertical Line TEST