Review of Functions

Function Vocab

100

True or False-A relation is a set of ordered pairs

What is TRUE?

200

The set of first coordinates of a relation or a function

What is Domain?

300

The set of second coordinates in a relation or a function

What is the range?

400

A relation that assigns exactly one value in the range to each value in the domain?

What is a function?

500

The test to tell if a graph is a function

What is the Vertical Line Test?

Domain

100

the input values

What is domain?

200

the output values

What is range?

300

Domain:

{(2, 4), (4, -2), (4,5)}

What is {2, 4}?

400

Range:

{(2, 4), (4, -2), (4,5)}

What is {-2, 4, 5}?

500

Find the domain and range:

{(0,1), (-1, 2), (4,5)}

What is {-1,0,4} for domain?  What is {1, 2, 5} for range?

Graphing

100

The point (1,2) is in this quadrant

What is the 1st quadrant?

200

How do you graph the point (-3,4)?

What is you go left 3 units on the x-axis then go up 4 units on the y-axis?

300

The signs of the points in quadrant 2

What is the (- , +)?

400

The quadrant that doesn't contain one of these points (-2,3), (3,-4) (2,3)

What is the third quadrant?

500

What quadrant is the point (0,2) in?

What is none because the point sits on the y-axis

Is it a Function?

100

Is it a function? {(2, 3), (4, 5), ( -2, 6)}

What is YES because x does not repeat?

200

Using the vertical line test does the graph of the points (1,3) and (1,5) represent a function?

What is False, the points fail the vertical line test

300

Is it a function?

x	y
2	4
1	5
2	6

What is NO because x repeats?

400

Is it a function?

What is YES because it passes the Vertical Line Test?

500

Is it a function?

What is NO because it does not pass the Vertical Line Test?