| A | B |
|---|
| Find the slope of the line passing through (3,2) and (5,6). | (6-2)/(5-3)=4/2=2 |
| Find the slope of the line passing through (-3,5) and (-4,1) | (1-5)/((-4-(-3))=-4/(-1)=4 |
| What is the slope of any vertical line? | rise/run=rise/0=undefined |
| What is the slope of any horizontal line? | rise/run=0/run=0 |
| If a line rises to the right, what type of slope does the line have? | positive |
| If a line falls to the right, what type of slope does it have? | negative |
| If two or more lines have the same slope, how are the lines related? | parallel |
| If two nonvertical lines have slopes that are negative reciprocals of each other, how are the lines related? | perpendicular |
| What is the slope of a line that is parallel to another line which passes through (-7,6) and (-3, 4)? | (4-6)/((-3-(-7))=-2/4=-1/2 All parallel lines would have a slope of -1/2. |
| Find the slope a line which is perpendicular to another line which passes through (9,-5) and (-3,4). | ((4-(-5))/(-3-9)=9/(-12)=-3/4 Perpendicular lines would have a slope of 4/3. |
| Find the slope of the line passing through (-6,-4) and (-6,2). | ((2-(-4))/((-6-(-6))=6/0=undefined |
| Find the slope of the line passing through (5,-9) and (1,-9). | ((-9-(-9))/(1-5)=0/(-4)=0 |
