Vocabulary
Mixed Review
Is it a function?
Evaluate Functions
Graphs of Functions
100
Define domain.
What are the "x" values ?
100
What is the value of x in the equation below:
3x - 7 = -4x + 21
x = 4
100
Is the following relation a function? {(-3,2),(-2,4),(-1,2),(5,4)}
Yes
100
f(x)= x+3
Find f(5)
f(3) = 8
100
Which type of function produces a straight line on a graph?
linear function
200
Define Range
What are the "y" values or outputs?
200
What type of function is shown below...
Quadratic Function
200
Is the following relation a function? {(-1,5),(2,3),(4,2),(10,2)}
yes
200
f(x)=2x^2
Find
f(-3)
f(-3) =18
200
Which type of function produces a "u-shaped" parabola on a graph
Quadratic Function
300
Define vertical line test.
What is used to determine a function on a graph?
300
Solve for y:
-2y + 10 > 36
y < -18
300
Is the following relation a function? {(-1,5),(2,3),(4,2),(-1,2)}
No
300
Find f(-1)
f(-1) = 4
300
What is the value of the y-intercept for the quadratic function y=x2 -2x -3
y = -3
(0, -3)
400
Define function.
What is a set of ordered pairs, x-value always different?
or
Are all "x" values different?
Does every output have a distinct output?
400
2(4x + 7) -5x = 2x + 20
x = -7
400
Is the following relation a function? If not state why.
Not a function b/c it fails vertical line test, since the 2's repeat.
400
Find f(-3)
f(x)=x^2 + 3x
What is f(-3)=0?
400
What is the minimum point for the quadratic function y=x2 -2x -3
(1,-4)
500
Choice 3