Using a graphical method, solve the sim ultaneous equations
y = 2x + 2 and x + y = 5

X+y=5
Making the y subject
y=5-x
Then we made these two equations equal to each other
2x+2=5-x
3x=3
x=1
The we substituted x=1 to one of the original equation
Like y=2(1)+2 or 1+y=5
We get y=4

The percent increase is 25%