Question

I don’t know how to graph two equations that 2w+2l=228 and l=w+42 and calculate the w and l.

Answer 1

Solve for w and l by using the system of equations.

2l=-2w+228

l=w+42

Substitute w+42 for l in the first equation.

2(w+42)=-2w+228

2w+84=-2w+228

4w=144

w=36

Now substitute 36 for w in any equation to get l=78.

To graph the equations, first make them equal l.

l=-w+114 and l=w+42 are your equations. You ca plug in values for w to plot points on the graph.