Unit 1 - Semester Exam Review

Front

Slopes of perpendicular lines are...

Back

opposite reciprocals.

Front

Find the slope of the line: y = 4x + 1

Back

4/1

Front

Find the slope of the line that passes through the points (2, 4) and (6, 12)

Back

2

Front

Find the slope of the line: y = -x + 3

Back

-1

Front

Which two lines are parallel? Line A: y = 2x + 1, Line B: y = 2x - 3, Line C: y = -1/2x + 4

Back

Line A and Line B

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

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

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

Front

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

Back

m1 = m2.

Front

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

Back

m1 * m2 = -1.

Front

What is the slope of a horizontal line?

Back

0.