The discussion revolves around the methods for graphing the linear equations y=x-2 and y=4-x, as well as determining their intersection point. It includes both graphical and algebraic approaches to solving the problem.
Participants express various methods for graphing and finding the intersection, but there is no consensus on a single approach or resolution to the problem. Multiple viewpoints on how to proceed remain evident.
Some participants mention specific points to plot, but there is no agreement on the final coordinates of the intersection point or the completeness of the algebraic method suggested.
This discussion may be useful for students learning to graph linear equations and find intersection points, as well as those seeking different approaches to solving similar mathematical problems.
do I use y=mx+b?HallsofIvy said:y= x-2
If x= 0, what is y?
If x= 2, what is y?
can you plot those two (x,y) points?
Since the graph of y= x- 2 is a straight line just draw the line between those two points.
Now do exactly the same thing using y= 4- x
If x= 0, what is y?
If x= 2, what is y?
Plot those two (x,y) points and draw the line through them.
Where do those two line cross?
You said you were given y=x-2 and y=4-x. Why not use them?caprija said:do I use y=mx+b?
How would I find out what y equals?