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Algebra 1 Vocabulary
Mid-Term Exam Study Guide
| Word | Definition |
|---|---|
| Real number | rational and irrational number |
| Irrational numbers | non repeating decimals |
| Rational numbers | a/b but b cannot be 0 |
| Integers | -3, -2, -1, 0, 1, 2, 3 |
| Whole number | 0, 1, 2, 3 |
| Function | Relationship between input and output |
| Communicative Property | 3 + 2 = 2 + 3 or 2x3 + 3x2 |
| Associative Property | 2 + (4 + 6) = (2 + 4) + 6 |
| Simplified | Combine like terms |
| Distributive Property | 4(a+ 6) = 4a + 24 |
| Variable | Unknown |
| Expression | Does not have an equal sign |
| evaluate | Solve |
| Twice | Two time |
| Equation | Has an equal sign |
| squared | To the second power |
| cubed | To the third power |
| Difference | Subtraction |
| Sum | Addition |
| Product | Multiply |
| quotient | Division |
| Relation | Set of ordered pairs |
| Linear equation | Forms a straight line |
| Slope intercept form | Y=mx + b |
| Standard formula of a line | Ax + b = c |
| Ordered pair | (x,y) |
| X axis | Horizontal axis |
| Y axis | Vertical axis |
| Domain | X axis |
| Range | Y axis |
| Slope | Determine steepness (Rise over run) “m” |
| And | Intersection |
| Or | Union |
| Simplified | Combine like terms |
| proportion | Ratios that are equal |
| Constant | Always the same |
| exponent | Power |
| denominator | Number on bottom (number doing the dividing) |
| factors | Two numbers being multiplied |
| of | Multiply |
| evaluate | Find its value, solve or work out |
| Cross cancel | Multiplication only – turn over fraction |
| solution | One or more answers that give a true statement. |
| Replacement set | Set if numbers chosen from the replacement set that make the equation true. |
| Solution set | The set of numbers chosen from the replacement set that make the equation true |
| Additive identity | Identical addition turned around ( 2 + 0 = 2) |
| Multiplication identity | Multiply a variable or number by 1 (A x 1 = a) |
| Mult Property of Zero | Anything times zero = zero |
| Mult inverse | Reciprocal ( 7 x 0 = 0 x 7) |