A graph of two simultaneous linear inequalities in two variables that have no intersecting regions must contain two lines with the same slope.
They are "like" terms.
are known as like terms.
I think that you are asking about the linear inequalities with two variables, so my answer is related to them. First, you have to draw the boundary line (be careful, if your inequality does not contain the equal sign, the boundary line will be a dashed line, because the points on the line are not solutions to the inequality), which divide the coordinate system in two half-planes. Second, you have to test a point on either sides of the line (the best point is the origin, (0, 0), if it is not on the boundary line). If that point satisfies the inequality, then there are all its solutions, otherwise they are to the opposite side.
Terms that contain the same variable is called "like terms".
An equation does not need variables. 4+5=9 is an equation as is 5+W=9
True
2
No, it can contain variables.
I'm not entirely certain what you're asking. Any pair of intersecting lines are of necessity coplanar, (assuming Euclidean geometry) though.
It could
like terms
The solution to a system of inequalities is where the solutions to each of the individual inequalities intersect. When given a set of graphs look for the one which most closely represents the intersection, this one will contain the most of the solution to the the system but the least extra.
In algebraic equations, exponents can contain variables. They can be solved for by using logarithmic rules for exponents.
The general name is a "constant".
Terms that contain the same variable is called "like terms".
Variables (or constants) that contain addresses.
They are "like" terms.