Unit 4 Vocabulary

3. A value (or values) that make an equation true.
4. - The point where the line crosses the x-axis.
5. - The set of all possible output values (y-values).
7. - The point where the line crosses the y-axis.
8. - A visual representation of an equation on a coordinate plane.
9. A relation where each input has exactly one output.
12. - A mathematical phrase combining numbers, variables, and operations, but no equality sign.
14. of Linear Equations - Two or more linear equations considered simultaneously.
16. Lines - Lines with the same slope but different y-intercepts.
18. Form - y−y1=m(x−x1), where m is the slope and (x1,y1) is a point on the line.
19. Lines - Lines with slopes that are negative reciprocals.
20. - The set of all possible input values (x-values).
21. - A symbol (usually a letter) representing an unknown value.

1. A number multiplied by a variable.
2. Form - y=mx+b, where m is the slope and b is the y-intercept.
6. Relationship - A linear relationship where the graph does not pass through the origin.
10. - A fixed value in an equation.
11. A point where a line crosses an axis.
13. Relationship - A linear relationship where the graph passes through the origin.
14. Form - Ax+By=C, where A, B, and C are integers.
15. - The rate of change between two points on a line; the steepness of a line.
17. Equation - An equation that forms a straight line when graphed.