algebra

1. Lines in the same plane that intersect at a right angle. Perpendicular lines have slopes that are negative reciprocals of each other.
3. A form of the equation of a line given by y - y₁ = m(x - x₁), where (x₁, y₁) is a point on the line, and m is the slope.
4. A form of the equation of a line given by Ax + By = C, where A, B, and C are constants, and A and B are not both zero
7. The point(s) where the graph of a function crosses the x-axis. It's the value(s) of x when y = 0.
8. A method used to find the slope of a line by calculating the vertical change (rise) divided by the horizontal change (run) between two points on the line.
9. of Change The ratio of the change in the output (dependent variable) to the change in the input (independent variable). In linear functions, this is equivalent to the slope.
10. A measure of the steepness of a line. It indicates how much the y-value (vertical change) changes for a given change in the x-value (horizontal change). Symbolized by the letter "m."

2. A function that can be expressed in the form f(x) = mx + b, where m is the slope and b is the y-intercept.
5. The point where the graph of a function crosses the y-axis. It's the value of y when x = 0.
6. Lines Lines in the same plane that never intersect. Parallel lines have the same slope.