Ch. 3 Vocab - DOK1 (Equations in Two Variables)

Front

Constant of Proportionality

Back

When two quantities increase and decrease at the same rate.

Front

Constant of Variation

Back

Relates two variables that are directly or inversely proportional.

Front

Constant Rate of Change:

Back

The rate of change between any two points in a linear relationship is the same or constant.

Front

Direct Variation

Back

A relationship between two variable quantities with a constant ratio.

Front

Linear Relationships

Back

A relationship that has a straight-line graph.

Front

Point-Slope Form

Back

y - y₁ = m(x - x₁), where m is the slope and (x₁, y₁) is a point on a nonvertical line.

Front

Rise: Vertical change between two points on a line.

Back

Vertical change between two points on a line.

Front

Run: Horizontal change between two points on a line.

Back

Horizontal change between two points on a line.

Front

Slope:

Back

Rate of change between two points on a line; ratio of rise (vertical change) to run (horizontal change).

Front

Slope-Intercept Form

Back

y = mx + b (m = slope, b = y-intercept)