Algebra 1. Trimester 2 Review

Front 1

Percent of Change

Back 1

When an increase or decrease is expressed as a percent

Front 2

Domain

Back 2

The set of the first numbers of the ordered pairs in a relation

Front 3

Range

Back 3

The difference between the greatest and least data values

Front 4

Slope-Intercept Form

Back 4

An equation of the form y=mx+b, where x is the slope and b is the y-intercept.

Front 5

Point-Slope Form

Back 5

an equation of the form y-y1=m(x-x1), where m is the slope and (x1,y1) is a given point on a non-vertical line

Front 6

Parallel Lines

Back 6

Lines in the same plane that never intersect and either have the same slope or are vertical lines

Front 7

Perpendicular Lines

Back 7

Lines that intersect to form a right angle

Front 8

Zero Slope

Back 8

the x-intercept of the graph of a function equals 0

Front 9

Undefined Slope

Back 9

When there is a vertical line that has different y points, but the same x point

Front 10

Scatter Plot

Back 10

A scatter plot shows the relationship between a set of date with two variables, graphed as ordered pairs on a coordinate plane

Front 11

Set-Builder Notation

Back 11

A concise way of writing a solution set.

Front 12

Compound Inequality (And/Or)

Back 12

Two or more inequalities that are connected by the words and OR or.

Front 13

Rules for Graphing Inequalitites

Back 13

the arrow points in the same direction as the inequality sign

use an "open" circle if the inequality is < or >

use a "closed" circle if the inequality is ≤ or ≥

Front 14

System of Equations

Back 14

A set of equations with the same variables

Front 15

Consistent

Back 15

A system of equations that has at least one ordered pair that satisfies both equations

Front 16

Independent

Back 16

A system of equations with exactly one solution

Front 17

Dependent

Back 17

A system of equations that has an infinite number of solutions

Front 18

Inconsistent

Back 18

A system of equations with no ordered pair that satisfy both equations

Front 19

Substitution

Back 19

Use algebraic methods to find an exact solution of a system of equations

Front 20

One solution

Back 20

when there is only 1 answer for the problem

Front 21

No solution

Back 21

when there is no correct answer to the problem

Front 22

Infinitely many solution

Back 22

when a solution set has the same slope and y-intercept

Front 23

Elimination by Addition (+)

Back 23

when the first step is solved for you

Front 24

Elimination by Subtraction

Back 24

When you have to multiply a negative so you can eliminate

Front 25

Elimination by Multiplication

Back 25

When you have to multiply both solutions to be able to eliminate