Math Placement Test Vocab with
Complete Solutions
A nonrepeating, nonterminating decimal. It cannot be written as a fraction. Pi is an
example. Square root of 17 is an example. - ANS-Irrational numbers
Any number that can be written as a fraction. Terminates or repeats. An example is 1/3.
- ANS-Rational number
whole numbers start at 0 and only go up. Negative numbers are not in the set of whole
numbers. - ANS-Whole numbers
Start at 1 and go up. No 0s, and no negatives. - ANS-Natural numbers
All whole numbers and their negatives - ANS-Integers
There is an equal sign - ANS-Equation
No equal sign - ANS-Expression
Passes the vertical line test. Every x value has exactly 1 y value. A sideways parabola
(y=squarerootofx) is not - ANS-Function
A fraction that compares two numbers - ANS-Ratio
Know commutative, associative, inverse (5 + -5 = 0), multiplicative inverse (5 • 1/5 = 1)
aka reciprocal, etc. - ANS-Properties of addition and subtractiln
Two ratios set equal to each other. An equation with fractions - ANS-Proportion
Coordinate plane, four quadrants. (On a graph, make a C. Top right, top left, bottom left,
bottom right.) - ANS-Cartesion coordinate system
Horizontal. First in an ordered pair - ANS-X axis
Vertical. Second in an ordered pair - ANS-Y acis
1st - (+,+)
2nd - (-,+)
3rd - (-,-)
4th - (+,-) - ANS-Quadrants
Complete Solutions
A nonrepeating, nonterminating decimal. It cannot be written as a fraction. Pi is an
example. Square root of 17 is an example. - ANS-Irrational numbers
Any number that can be written as a fraction. Terminates or repeats. An example is 1/3.
- ANS-Rational number
whole numbers start at 0 and only go up. Negative numbers are not in the set of whole
numbers. - ANS-Whole numbers
Start at 1 and go up. No 0s, and no negatives. - ANS-Natural numbers
All whole numbers and their negatives - ANS-Integers
There is an equal sign - ANS-Equation
No equal sign - ANS-Expression
Passes the vertical line test. Every x value has exactly 1 y value. A sideways parabola
(y=squarerootofx) is not - ANS-Function
A fraction that compares two numbers - ANS-Ratio
Know commutative, associative, inverse (5 + -5 = 0), multiplicative inverse (5 • 1/5 = 1)
aka reciprocal, etc. - ANS-Properties of addition and subtractiln
Two ratios set equal to each other. An equation with fractions - ANS-Proportion
Coordinate plane, four quadrants. (On a graph, make a C. Top right, top left, bottom left,
bottom right.) - ANS-Cartesion coordinate system
Horizontal. First in an ordered pair - ANS-X axis
Vertical. Second in an ordered pair - ANS-Y acis
1st - (+,+)
2nd - (-,+)
3rd - (-,-)
4th - (+,-) - ANS-Quadrants
