Unit 3 Vocabulary Algebra II Linear Functions

Front

Slope

Back

The measure of the steepness or incline of a line, represented as the ratio of the change in the output to the change in the input.

Front

Average Rate of Change

Back

The change in the y divided by the change in the x

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Front

Independent Variable

Back

The input variable of a function; it is manipulated or changed by the researcher in an experiment to observe its effect on the dependent variable.

Tags

CCSS.6.EE.C.9

Front

Dependent Variable

Back

The output variable of a function, it represents a quantity whose value depends on how the independent variable is manipulated.

Tags

CCSS.6.EE.C.9

Front

Linear Function

Back

A function that creates a straight line when graphed; the highest exponent on the variable is 1.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Front

Slope-Intercept Form

Back

A way of writing the equation of a line so that the slope and y-intercept are immediately apparent, y = mx + b.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

Point-Slope Form

Back

A way of writing the equation of a line using the slope and a point on the line, y - y1 = m(x - x1).

Front

Perpendicular Lines

Back

Lines that intersect at a right angle (90 degrees) whose slopes are negative reciprocals.

Tags

CCSS.8.EE.B.6

Front

Inverse Linear Function

Back

A function that reverses the effect of a linear function, often found by swapping the dependent and independent variables.

Tags

CCSS.HSF-BF.B.4C

Front

Y-Intercept

Back

The point where a line crosses the y-axis of a graph.