First you have to plug in your information into the formula- y=mx+b So we know the y is 2, the slope (m) is 1/2, the x is 2 and we don't know the b. Do plug it in the formula and solve... you should get 2=1/2(2)+b you will end up with 1=b and the final answer is y=1/2x+1
<span>A system of equations has infinitely many solutions when the two
lines representing the equations coincide. i.e. the two equations are
the same or a multiple of each other. 2y - 4x = 6 2y = 4x + 6 2y = 2(2x + 3) y = 2x + 3 -y = -(2x + 3) -y = -2x - 3 Hence the other equation is -y = -2x - 3</span>