Do anybody know the answers to these math problems

1.y=2/3x-9 and y=2/3x+3
the equations describe
A.parallel lines
B.the same lines
C.perpendicular lines
D.intersecting,not perpendicular lines

2.Which of the following is domain of this relation? (-2,0) (1,3) (3,0) (-2,-3)
A.(-2,1,3)
B.(-3,0,3)
C.(-2,-3)
D.(-2,0)

you should get the slope first it is y2-y1/x2-x1
then, you should check if the slope of that other line is a reciprocal with an opposite sign. if it is, it is perpendicular.
if they are parallel, they should have the same slope.
graph to check f they are the same line
and to see if they intersect.
domain= x value
range=y value

If the lines have the same slope, they are parallel.
The product of the slopes of the lines = -1, the lines are perpendicular.
If the lines have different slopes but the product of the slopes is not -1, the lines intersect but are not perpendicular.
If the lines have the same slope and same y-intercepts, the lines are the same.
:::::
domain = set of x values
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What wavryder ® really meant to say is, "Welcome you are, yes."

1. A
[Lines with the same slope are parallel. One of the lines intersect at -9, while the other intersect at +3]


2. A
[The domain are the x-values of each ordered pair]

1) A [because they have the same slope (y= mx +b where m = slope)]
2) A [All x values = domain so -2, 1, and 3)

1. A
2. A

yes, you're welcome.