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33 Cards in this Set
- Front
- Back
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Numbers on a Real Number Line must be...
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rational or irrational
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Given two real numbers a and b, what four basic operation can be performed on them?
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addition, subtraction, multiplication and division
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The result from performing any of the four basic operations on any two real numbers is...
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another real number
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What is the multiplicative inverse (or reciprical) of a?
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1/a because 1/a x a = 1
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What is the multiplicative inverse (reciprical) of 0 |
The multiplicative inverse of zero is not defined. We cannot divide by zero |
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Of the 4 operations that can be performed on real numbers, which two operations are not commutative?
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subtraction and division
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N
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The set of Natural numbers (1,2,3...)
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W
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The set of Whole numbers (0,1,2,...)
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I
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The set of Irrational Numbers
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Q
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The set of Rational numbers
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Z
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the set of Integers (...-2,-1,0,1,2...)
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R
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The set of Real numbers
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If to lines intersect at one point...
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...the solution of the system is the ordered pair of the intersection point.
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If two lines are parallel...
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...there is no solution.
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if two lines are identical...
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...the system has an infinite number of solutions.
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y=mx+b |
Slope intercept form |
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What is b in y=mx+b? |
The y intercept |
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What is m in y=mx+b? |
The Slope (How much does y change for any change in x? ) |
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What is a composite number? |
A composite number is a positive integer which is not prime (it has factors other than 1 and itself). |
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a^2-b^2 = |
(a + b)(a – b) or (a – b)(a + b) (difference of perfect squares) |
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Order of operations |
Parenthesis, Exponents, Multiply, Divide, Addition, Subtraction |
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In general, if u < k, then it follows that... |
-u > -k |
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Vertical Angles |
Pairs of opposite angles made by two intersecting lines |
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Solve for x in two vertical angles |
Vertical Angle 1 = Vertical Angle 2 |
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A vertical line has a(n) ______ slope |
Undifined |
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A horizontal line has a slope of... |
0 |
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Transversal |
A line that cuts across two or more (usually parallel) lines.
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Congruent Angles
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Angles are congruent if they have the same angle measure in degrees.
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Alternate Interior Angles
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Alternate Interior Angles are created where a transversal crosses two (usually parallel) lines. Each pair of these angles are inside the parallel lines, and on opposite sides of the transversal.
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Alternate Exterior Angles
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Alternate Exterior Angles are created where a transversal crosses two (usually parallel) lines. Each pair of these angles are outside the parallel lines, and on opposite sides of the transversal.
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Corresponding Angles
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Corresponding angles are created where a transversal crosses other (usually parallel) lines. The corresponding angles are the ones at the same location at each intersection.
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Vertex
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The common endpoint of two or more rays or line segments. Vertex typically means a corner or a point where lines meet.
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Ratio |
The relationship between two measures,expressed as the number of times one is bigger or smaller than the other.
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