Functions!

Domain & Range

100

What is the the domain and range of the following table: X -1 0 1 2 Y 4 8 12 16

Domain: -1, 0, 1, 2 Range : 4, 8, 12, 16

200

What is the Domain and Range of the following graph? (see picture function 200)

Domain:1, 2, 3 Range: 1, 3, 5

300

What is the Domain and Range of the following graph? (see pic function 300)

Domain: -2, 0, 2 Range: -2, -4

400

What is the range of the function y= 2x-5 using the following domains:-2, -1, 0, 1

Range: -9, -7, -5, -2

500

What is the domain and range of the function -2x + y = 4, when you use the following x values: -1, 0, 2, 4

Domain: -1, 0, 2, 4 Range: 2, 4, 8, 12

Whats the domain

100

X is the number of concert tickets for adults and y is the number of concert tickets for children. Is the domain discrete or continuous? Explain

Discrete, you can not buy part of a concert ticket

200

X stands for lbs of cheese, y is the total cost of the cheese. Is the domain discrete or continuous? Explain

Continuous, you can buy part of a lb of cheese.

300

x represents pounds per piece of luggage, y represents total weight of luggage. Is the domain discrete or continuous? Explain.

continuous, you can have part of a pound.

400

The input of one function is length. the input of another function is number of shirts. Which function has a continuous domain? Explain.

The function with an input of length because you can have part of a foot or inch, but you can not have half of a shirt.

500

THe input of one function is time spent on the computer. The input of another function is the number of computers in your household. Which function has a discrete domain?

number of computers in household

Whats the function

100

y-2x=3, write this equation in function form.

y= 3+2x or y= 2x + 3

200

2x - 3y = 9, write this equation in function form.

y = -3 + 2/3x or y = 2/3x - 3

300

x: -2, -1, 0, 1 y: 2, 2, 2, 2 Write the function of the table.

y=0x + 2 or y=2

400

x: -3, -2, -1, 0 y: 9, 7, 5, 3 Write the function of the table.

y= -2x + 3

500

Write the function of the table. x: 1, 3, 5, 7 7:-6,-4,-2, 0

y = -1x -7 or y = -1x + -7

Linear or nonlinear

100

Is the following function table linear or nonlinear? x: 0, 7, 14, 21 y:25, 20, 15, 10

Linear x increase by 7, y decreases by 4

200

Is the following graph linear or nonlinear? http://image.tutorvista.com/content/feed/u1989/x3-9x%20ex1.JPG

nonlinear

300

Is the following function linear or nonlinear? x: 5, 11, 17, 23 y: 7, 11, 15, 19

linear, x increases by 6, y increase by 4

400

Is the following function linear or nonlinear: y + x = 4x + 5

Linear, you can rewrite the equation in function form y=3x+5

500

Is the following equation a function: y = 2/x + 1?

nonlinear, the graph does not make a line and it can not be put into slope-intercept form

Whats the word

100

What is the definition of domain?

Domain is the input values in a function

200

What is the definition of range?

range is the output values of a function

300

What is the definition of function?

Function is a relationship that pairs each input with exactly one output.

400

What is the definition of discrete domain?

Discrete domain is a set of input values that consists of only certain numbers (it can not be broken into smaller pieces)

500

What is the definition of continuous domain?

continuous domain is a set of input values that consists of all numbers in an interval (it can be broken into smaller pieces)