Horizontal and Vertical lines
horizontal
(3, -6) and (2, -6) are what kind of line? y repeats
vertical
(6, 8) and (6, -4) are what kind of line? x repeats
horizontal
Lines parallel to the x axis
vertical
Lines parallel to the y axis
horizontal
Straight lines that go across left to right
vertical
Straight lines that go up and down
vertical
___________ lines are written as x = a number x= 5 or x=-4
horizontal
______________ lines are written as y= a number y= 8 or y= -4
vertical
______________ lines have undefined slope
horizontal
_________________ lines have zero slope
vertical
lines perpendicular to the x axis
horizontal
lines perpendicular to the y axis
horizontal
slope of zero and passes through (0, 8)
vertical
undefined slope and passes through (5,0)