Slopes Review

Slopes of perpendicular lines are...

• opposite reciprocals.

• opposites.

• the same.

• always 7.

y = -2/3x + 2
y = 3/2x + 9
These lines are...

• Parallel

• Perpendicular

• Neither

What slope is perpendicular to:  
m = 5/8

• -5/8

• 5/8

• -8/5

• 8/5

y = 3x +2
y = 3x - 3
These lines are...

• Parallel

• Perpendicular

• Neither

• The same line

If the lines are parallel to each other and the slope of the blue line is 1/4, what is the slope of the purple line?

• 4

• -4

• 2

• -2

Parallel lines have _________________ slope.

• The Same

• Opposite Reciprocal

Perpendicular lines have _________________ slope.

• The Same

• Opposite Reciprocal

What is the slope of the graph?

• -2

• 2

• 1/2

• -1/2

In slope-intercept form y = mx + b, which value represents the starting or initial value?

• y

• m

• x

• b