We saw how we could fairly easily create the graph from the factored form and easily found the x-intercepts. Then we found the axis of symmetry by averaging the x-intercepts. Then we used that value to determine the vertex. We used the "a" value to determine another 2 quick points on the graph. We were reminded that a y-intercept can be found by letting x = 0.

Use the link below for more practice on intercept form:

https://www.youtube.com/watch?v=xCpURXGLbuE

https://www.youtube.com/watch?v=SRAp7hQJi3E

https://www.youtube.com/watch?v=IR56CnowYuA this has many examples including the one we did in class

HW: Complete the front side (1 - 6) of today's worksheet, graphing using intercept form.]]>

HW: Enjoy the weekend! Please turn in any missing work.

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HW: Quiz 4.4 - 4.5 is tomorrow, 9/15. On WS 4.5 do 1 - 15.

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Use the links for additional practice/help

https://www.khanacademy.org/math/algebra2/polynomial-and-rational/quad_factoring/v/example-1-solving-a-quadratic-equation-by-factoring

https://www.youtube.com/watch?v=SDe-1lGeS0U

http://www.purplemath.com/modules/solvquad.htm

http://www.regentsprep.org/regents/math/algtrig/ate3/quadlesson2.htm

HW: Complete the worksheet circuit training - solve by factoring. Quiz 4.4 - 4.5 is Friday, 9/15.]]>

HW: Complete WS Circuit Training - factoring by grouping

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Use the links below for review/practice:

https://www.youtube.com/watch?v=hvkhBd5UTmI

https://www.youtube.com/watch?v=W7c9B_OMXF4 (verify the product of the diagonals are equal)

https://www.youtube.com/watch?v=YaCpeoxGa4E

https://www.youtube.com/watch?v=2tkLiRISuVs

HW: Complete WS 4.4 Test Prep & the back side, Enrichment. Turn in your WS Circuit Training from last Friday.]]>

HW: Complete WS Circuit Training - factoring when a is not 1.

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We went over factoring methods of GCF, difference of squares, perfect square trinomials, simple trinomials where a = 1 and the Box method for factoring a trinomial with the leading coefficient something other than 1 or a GCF. For those not wanting to use the Box method, we demonstrated how one could use guess and check. We also completed the first 3 - 6 problems on the Circuit Training Worksheet.

Use the links below for more practice/help

https://www.youtube.com/watch?v=uJCZlbzX6u0

https://www.youtube.com/watch?v=ljAq4RDJtt8

https://www.youtube.com/watch?v=WipYqupv9wY&list=PLD8CF85E686758097

https://www.youtube.com/watch?v=PTW8UL0Bwyg

https://www.youtube.com/watch?v=tgPiykxCocw

HW: Complete WS Circuit Training - factoring]]>

HW: Enjoy the day!

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HW: Test 4.1 - 4.2 is tomorrow, September 6th. Any missing work is due as well. ]]>