125 Lesson 3

Front

What is the equation of a horizontal line?

Back

y = b, where b is the y-intercept.

Front

What is the slope of a horizontal line?

Back

0

Front

What is the equation of a vertical line?

Back

x = a, where a is the x-intercept.

Front

What is the slope of a vertical line?

Back

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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.

Front

What is the point-slope form of a line?

Back

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

Front

How do you determine if two lines are perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Front

What is the slope of the line represented by the equation 3x + 2y = 6?

Back

-3/2.

Front

What is the y-intercept of the line y = 4x + 5?

Back

5.

Front

What is the x-intercept of the line y = -2x + 8?

Back

4.