Writing Equations of Lines Review

Front

What is the slope of a vertical line?

Back

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Front

What slope is parallel to: m = 4?

Back

4

Front

Two lines that are parallel will have ...

Back

Slope that is the same

Front

Are the two linear equations parallel, perpendicular, or neither?

Back

Perpendicular

Front

Identify the slope-intercept equation: y = 2x - 2, y = -2x + 2, y = -2x + 4, y = 2x + 4

Back

y = 2x + 4

Front

What is the slope of a horizontal line?

Back

0

Front

What is the formula for slope (m)?

Back

m = (y2 - y1) / (x2 - x1)

Front

If two lines have slopes m1 and m2, when are they perpendicular?

Back

When m1 * m2 = -1

Front

What does it mean for two lines to be parallel?

Back

They never intersect and have the same slope.

Front

What is the slope-intercept form of a line?

Back

y = mx + b, where m is the slope and b is the y-intercept.