Question

please help ??
Is the line with equation x = 4 horizontal or vertical? What is the slope of this line?
Is the line with equation y = -8 horizontal or vertical? What is the slope of this line?

Answer 1

when you have a line on x is that horizontal or vertical ??

Answer 2

.Vertical

Answer 3

x=4 means x is always 4 and y can be anything.

so pick two numbers for y, say 0 and 1,
you have the points
4,0 and 4,1 on the line

connect the dots. is the line going sideways or up/down ?

Answer 4

.the slope is undefined?

Answer 5

correct

Answer 6

http://www.coolmath.com/algebra/08-lines/08-graphing-horizontal-vertical-lines-01.htm

Answer 7

and is y=-8 is a horizontal line slope is 0 ?

Answer 8

correct

Answer 9

yay :D thanks (:

Answer 10

yw :)