In week 12 we learned lesson 5.5 and reviewed for our test.
One thing that I learned is how to put a quadratic equation and linear equation and putĀ them together to find the root (x) and replace in the original equation to find (y)
Example
y = 3x + 7 and
y = X2 + 4x +3
X2+4x +3 = 3x +7
Then you move it all to either side but you should try to keep the X squared (X2) positive.
X2 -3x -4
Now you can just factor and solve for X