Across
- 2. An equation that forms a straight line when graphed; its highest exponent on variables is 1.
- 4. A relationship where each input (x) has exactly one output (y); linear equations are often functions.
- 5. The point where the line crosses the x-axis; it’s the value of x when y = 0.
- 6. These are fixed values that do not change, and are often the opposite of variables in algebraic expressions.
- 9. This is the most common form of a linear equation, where “m” stands for slope and “b” represents the y-intercept.
- 12. It describes how much y changes for every unit x increases.
- 14. This is the equation used when you know the slope and one point on a line, and you want to find the equation of the line. It rearranges the slope formula into an equation involving x and y.
- 15. This formula calculates the rate of change between two points on a line and is often described as “rise over run.”
Down
- 1. The point where the line crosses the y-axis; it’s the value of y when x = 0.
- 3. Points where a line crosses theaxes; includes both the x-intercept and y-intercept.
- 7. The rate of change between two points on a line, often represented by the letter m.
- 8. This linear equation form is useful for comparing equations and is often used in systems of equations. Both variables are on the same side, set equal to a constant.
- 10. A visual representation of an equation on a coordinate plane.
- 11. These are symbols used to represent unknown values or changing quantities, often seen as “x” or “y” in equations.
- 13. Any point (x, y) that makes a linear equation true; it lies on the line when graphed.