Algebra 1 terms

1. the horizontal number line on a two-dimensional Cartesian coordinate plane, passing through the origin
3. a number or algebraic expression that is multiplied by another to create a product.
5. a value that, when multiplied by itself, equals that original number.
11. a statistical method used to find the "best-fitting" equation for a set of data points.
12. a transformation that "flips" a graph or figure over a specific line, known as the line of reflection, creating a mirror image.
13. the extra money paid for borrowing money or earned from an investment.
14. the value that appears most frequently in a data set.
15. the vertical number line on a coordinate plane that runs up and down, intersecting the horizontal x-axis at the origin

2. any value that makes a mathematical statement—like an equation or an inequality.
4. anything that can be expressed as a ratio Irrational a real number that cannot be written as a simple fraction
6. two primary meanings depending on whether you are talking about functions or statistics
7. the arithmetic average of a set of numbers.
8. a real number that cannot be written as a simple fraction
9. the middle value of a data set when the numbers are arranged in order from least to greatest.
10. relationships where the variables have a constant rate of change, creating a straight line when graphed.