Functions

Question 1

mathematical model

Answer 1

an abstract replica that uses mathematical language to describe the behavior of a system

Question 2

function model

Answer 2

a certain type of mathematical model where for every value of an input variable, there is exactly one value of an output variable

Question 3

closed dot

Answer 3

less than or equal to; or greater than

Question 4

open dot

Answer 4

less than or greater than

Question 5

function

Answer 5

a relationship that exists between numbers or variables, for every x there is only one y

Question 6

linear function

Answer 6

straight line

Question 7

square root function

Answer 7

y=sqr root x

Question 8

parabolic function

Answer 8

y=x²

Question 9

inverse function

Answer 9

y=1/x

Question 10

absolute value function

Answer 10

y=|x|

Question 11

cubic function

Answer 11

y=x³

Question 12

domain

Answer 12

the set of all possible input numbers (independent variable) (x)

Question 13

range

Answer 13

the set of all possible output numbers (depenedent) (y)

Question 14

direct variation = direct proportion

Answer 14

if there are 2 variables related to one another and if one varibale changes with the changes in another variable, then we say there is a variation or change

can be describe as y=kx k=constant of variation or constat of proportionality

Question 15

relation

Answer 15

can be represented by a set of ordered pairs (x,y)