Alg. 1 Vocabulary

Front

Slope intercept form

Back

The slope-intercept form is a linear equation of the form 𝑦=𝑚𝑥+𝑏, where:

m represents the slope of the line (the rate of change).

b represents the y-intercept (the point where the line crosses the y-axis).

It is used to describe a straight line in the coordinate plane.

Front

Point Slope Form

Back

The point-slope form is a way to write the equation of a line when you know the slope (m) and one point on the line (x₁, y₁).

Front

Standard form

Back

Front

Y-intercept

Back

The y-intercept is the point where a graph crosses the y-axis.

Front

Slope

Back

• Slope is a measure of the steepness or incline of a line, typically represented by the letter m in the equation of a line.

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Parallel

Back

Parallel lines are two or more lines in a plane that never intersect and are always the same distance apart.

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Perpendicular

Back

Two lines or segments are perpendicular if they intersect to form a right angle (90 degrees).

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Direct variation

Back

• A relationship between two variables in which one variable is a constant multiple of the other. If one variable increases, the other increases proportionally.