2.1-2.4

Question 1

set of pairs of input and output values

Answer 1

Relation

Question 2

set of all inputs(x-coordinates)

Answer 2

Domain

Question 3

set of all outputs(y-coordinates)

Answer 3

Range

Question 4

map linking elements of the domain to corresponding elements of the range

Answer 4

Mapping Diagram

Question 5

relation in which each element of the domain is paired with exactly one element in the range

Answer 5

Function

Question 6

if a graph is a function or not

Answer 6

Vertical Line Test (VLT)

Question 7

f(x) is read as ‘f’ of ‘x’ or ‘a function f of x’ not ‘f times x’

Answer 7

Function Notation

Question 8

function whose graph is a line

Answer 8

Linear Function

Question 9

linear functions can be represented as

Answer 9

Linear Equation

Question 10

when the value of y depends on the value of x

Answer 10

dependent variable

Question 11

the x is called

Answer 11

independent variable

Question 12

the line crosses the y-axis(0,b)

Answer 12

Y-Intercept

Question 13

the line crosses the x-axis (A,0)

Answer 13

X-Intercept

Question 14

Ax+By=C where A,B,C are real numbers and A and B dont equal C

Answer 14

Standard Form of a Linear Equation

Question 15

non-vertical line is the ratio of the vertical change to a corresponding horizontal change (m)

Answer 15

Slope

Question 16

use to find slope by examining the equation

Answer 16

Slope-Intercept Form

Question 17

graph that relates two different sets of data by plotting the data as ordered pairs

Answer 17

Scatter Plot

Question 18

line that approximates the relationship between the data sets of a scatter plot

Answer 18

Trend Line