Question

how do you solve this linear equation by substitution and graphing:
eq 1: y=1/2x + 4
eq 2: y= -x - 5

Answer 1

Put arbitrary vales of x in both the equations, so that you get at least 4 to 5 values of y. Once you have the ordered pairs, you can easily plot them on a graph.

For substitution, put the value of y in the other eq. solve it for x. then put it again in the same equation to get the value for y.