| A | B |
|---|
| ---- numbers used most often in algebra. | real |
| 0,1,2,3,4...are? | whole numbers |
| ...-3,-2,-1,0,1,2,3...are? | integers |
| numbers such as 3/4, 1/4, and -4/1 (or -4) that can be written as the ratio of two integers. when written as decimals, rational numbers terminate or repeat. eg. 3/4= 0.75 and 1/3= 0.333... are? | rational numbers |
| real numbers that are not rational, such as the square root of 2 and pi=3.14... when written as decimals, ---- numbers neither terminate nor repeat. | irrational |
| the zero on a real nuber line or coordinate plane is called the ----. | origin |
| ---- is the point on a number line that corresponds to a real number. | graph of a number |
| ---- is the number that corresponds to a point on a number line. | coordinate of the point |
| ---- property: a+b and ab is a real number. | closure |
| ---- property: a+b=b+a and ab=ba. | commutative |
| ---- property: (a+b)+c=a+(b+c) and (ab)c=a(bc). | associative |
| ---- property: a+0=a and a*1=a. | identity |
| ---- property: a+(-a)=0 and a*(1/a)=1 if a doesn't =0. | inverse |
| ---- property: a(b+c)=ab+ac. | distributive |
| the additive inverse is also called ----.(a is -a) | the opposite |
| the multiplicative inverse of any nonzero number can also be called ----.(a is 1/a) | the reciprocal |
| ---- consists of numbers, operations, and grouping symbols. | numerical expression |
| ---- is a letter that is used to represent one or more numbers. | variable |
| ---- is an expression that represents a real-life situation. | mathematical model |
| ---- is an expression involving variables. | algebraic expression |
| if two algebraic expressions have the same value or solution then they are? | equivalent |
| ---- is a statement in which two expressions are equal. | equation |
| ---- in one variable is an equation that can be written in the form ax=b where a and b are constants and a doesn't equal 0. | linear equation |
| ----: if a=b, then a+c=b+c. | addition property of equality |
| ----: if a=b, then a-c=b-c. | subtration property of equality |
| ----: if a=b and c doesn't=0, then ac=bc. | multiplication property of equality |
| ----: if a=b and c doesn't=0, then a/c=b/c. | division property of equality |
| name the formula d=rt | distance |
| name the formula I=Prt | simple interest |
| name the formula F=(9/5)C+32 | temperature |
| name the formula A=(1/2)(b1+b2)h | area of a trapezoid |
| what are the variable of the distance formula? | d,r,t distance, rate, time |
| what are the variables of the simple interest formula? | I,P,r,t interest, principal, rate, time |
| what are the variables of the temperature formula? | F,C degrees fahrenheit, degrees celsius |
| what are the variables of the area of a trapezoid formula? | a,b1,b2,h area, base one, base two, height |
| ---- is an example of x<5 and 2n-3>9. | linear inequalities |
| ---- in one variable consists of all points on a real number line that correspond to solutions of the inequality. | graph of an inequality |
| ---- is two simple inequalities joined by "and" or "or." eg. -2<x<1, X<-1orX>2. | compound inequality |
| ---- is the distance the number is from 0. eg. |x|; |-3|=3; |3|=3 | absolute value |
| an absolute value is always ----. | nonnegative |
| the ---- |ax+b|=c, where c>0, is equivalent to the compound statement ax+b=c or ax+b=-c. | absolute value equation |
| how many possible answers does |x|=c, where c>0, have? | two |
