Question 3 (Multiple Choice Worth 4 points)
[6.03] If you wanted to eliminate the y variable by adding the two equations in the following system, what could be your first step?
2x − 4y = 6
3x − y = 12
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Yes, except when the line is in the plane. In the latter case, they intersect at each point on the line (an infinite number).
If the line is not IN the plane ... it just zaps through the plane from some direction ... then it touches the plane in only one point. The intersection is a point.if it is lined up with the plane, then the intersection is a line.
I believe the answer is "perpendicular line". Forgive me if I'm wrong :)
Yes, that's pretty much the definition of parallel.
Graphing a line on the coordinate plane is the two-dimensional equivalent to marking a point on a number line. It just means to graph your line with respect to the x and y axes.