# Shared Flashcard Set

## Details

Chapter 1
Sullivan and Struve
42
Mathematics
06/12/2008

Term
 In a given expression, the domain of a variable is
Definition
 those values that the variable is allowed to be in that expression
Term
 When you solve an equation and the variable disappears leaving you with a true statement like 0 = 0   it is called a(n)
Definition
 Identity
Term
 When you solve an equation and the variable disappears leaving you with a false statement like 2 = 0   it is called a(n)
Definition
Term
 Any time you have both a fraction and an equal sign, you must ...
Definition
 multiply every term by a common denominator
Term
 How would you represent 3 consecutive integers
Definition
 first = x second = x + 1, third = x + 2
Term
 How would you represent 3 consecutive even integers
Definition
 first = x second = x + 2 third = x + 4
Term
 Consecutive odd integers
Definition
 "x, x + 2, x + 4 …"
Term
 In a story problem, the word "than"
Definition
 reverses the order
Term
 Last step of every story problem
Definition
 make sure you answered the question!
Term
 Comparison problems, make x
Definition
 the second thing mentioned
Term
 When using boxes to solve story problems, multiply
Definition
 across
Term
 When using boxes to solve story problems, add
Definition
 down
Term
 Rate x Time =
Definition
 Distance
Term
 Formula for the area of a rectangle
Definition
 length x width
Term
 Sum of the measures of the angles in a triangle
Definition
 180
Term
 The value of a pile of X dimes is
Definition
 .10X
Term
 The value of a pile of nickels
Definition
 number of coins x .05
Term
 The value of a pile of quarters is
Definition
 number of coins x .25
Term
 To evaluate a formula
Definition
 substitute (bird's nest)
Term
 If you multiply or divide an inequality by a negative
Definition
 flip the arrow
Term
 3 < x is the same thing as
Definition
 x > 3
Term
 To graph x < 5, darken the arrow head on the number line that points
Definition
 left
Term
 To graph x > 3, darken the arrow head on the number line that points
Definition
 right
Term
 To graph x < 5, the endpoint of the ray will be
Definition
 )
Term
 To graph x > 3, the endpoint of the ray will be
Definition
 (
Term
 If you use extra ink to make an equal sign under the inequality, to make the endpoint of the ray use
Definition
 [ or ]
Term
 To solve compound inequalities involving OR, picture the figure
Definition
 EleanOR the ice skater
Term
 To solve compound inequalities involving AND, picture the figure
Definition
 ANDY the tank engine
Term
 Union of two sets, is the word AND or OR?
Definition
 OR
Term
 Intersection of 2 sets, is the word AND or OR
Definition
 AND
Term
 Compound inequalities involving OR, the graph will be
Definition
 either shooting arrow(s) or whole number line
Term
 Compound inequalities involving AND, the graph will be
Definition
 a barbell, a point, or the empty set (no solution)
Term
 Two types of problems that give answers that are shooting arrows
Definition
 EleanOR and absolute value >
Term
 Two types of problems that give answers that are barbells
Definition
 ANDY and absolute value
Term
 What number can never be on the bottom of a fraction?
Definition
 zero
Term
 In absolute value problems, how many answers do you usually expect?
Definition
Term
 |Absolute value| < negative   What is the answer?
Definition
 No solution
Term
 Absolute < 0 What is the answer?
Definition
 No solution
Term
 Absolute > negative What is the answer?
Definition
 All real numbers
Term
 Absolute > 0 What is the answer?
Definition
 All real numbers
Term
 Absolute = 0, no exponents How many answers do you expect?
Definition