Algebra Review

2. The collection of all output values of a function
3. the vertical axis in a coordinate plane
7. Two numbers are reciprocals if their product is 1. If a/b is a nonzero number, then its reciprocal is b/a
8. The point in a coordinate plane where the horizontal axis intersects the vertical axis. The point (0,0)
9. A coordinate graph containing points that represent a set of ordered points; used to analyze relationships between two real-life quantities.
11. A number that, when substituted for the variable in an equation or inequality, results in a true statement.
12. the horizontal axis in a coordinate plane
15. A linear equation written in the form y=mx+b. The slope of the line is m. The y-intercept is b.
17. One of four regions into which the axes divide a coordinate plane
18. The y or x-coordinate of a point where a graph crosses the y or x-axis.
19. A statement formed by placing an equal sign between two expressions.

1. a letter that replaces a number
4. The collection of all input values of a function
5. The rules for evaluating an expression involving more than one operation.
6. you multiply a sum by multiplying each addend separately and then add the products.
7. The quotient of two different quantities that are changing. In a linear model, the slope give the rate of change of one variable with respect to the other.
10. Two operations that undo each other, such as addition and subtraction.
13. The coordinate system formed by two real number lines that intersect at a right angle
14. A pair of numbers used to identify a point in a coordinate plane. The first number is the x-coordinate and the second number is the y-coordinate (x, y)
16. The ratio of the vertical rise to the horizontal run between any two points on a line. rise over run