What is the y value of the intersection of #x + y = 8# and #x – 2y = -4# when solving by using the graphing method?
1 Answer
Mar 22, 2018
Explanation:
First rearrange the two equations so
Because these are straight lines, we only need to put in two values of
So we have coordinates
So we have coordinates
We now plot each pair of coordinates and join them with a straight line.
You should have a graph that looks like this:
We can see from this that, at the intersection the