How do you solve the system #2x+4y=8# and #x+y=1# by graphing?

1 Answer
Dec 23, 2017

please see below


To solve any set of linear equations graphical method isn't much used because it is time consuming but have a look at it.
#x+y=1# put any 2 distinct values of x to get 2 distinct values of y .
like the set of values could be
#x=1 y=0#
#x=0 y=1#
do the same for other equation . plot these values on graph .since these are linear equations the graph would show a straight line .
the point at which the lines intersect is common solution .
I designed a graph for same at desmos have a look .