Week 12 Pre Calc 11

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

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