Videos
https://www.youtube.com/watch?v=5trp4U4rmLM
https://www.youtube.com/watch?v=wtLGDhVoxvshttps://learnzillion.com/lesson_plans/7419-write-the-equation-of-a-line-using-information-from-a-graph
https://www.youtube.com/watch?v=KsgWLV3RiRQ
https://www.youtube.com/watch?v=w_hph89OA8I
https://www.youtube.com/watch?v=ahtHbGYSZ-4
https://www.youtube.com/watch?v=MByd3HYWwRE
https://www.youtube.com/watch?v=zanq7gmXY88
https://www.youtube.com/watch?v=uMz4Hause-o
https://www.youtube.com/watch?v=V6pZyY6mM3g
https://www.youtube.com/watch?v=tg0Z--pmPog
https://www.youtube.com/watch?v=YX_OxBfsvbk
https://www.youtube.com/watch?v=fbCILSpOcwg
https://www.youtube.com/watch?v=nbopLhP4kpo
https://www.youtube.com/watch?v=BbX44YSsQ2I
https://www.youtube.com/watch?v=D_y_owf1WsI
https://www.youtube.com/watch?t=250&v=0gn5Y16Pk2U
https://www.youtube.com/watch?v=k22O8zr9yio
https://www.youtube.com/watch?v=302TotMfNFk
https://www.youtube.com/watch?v=vCJ-zRQSguQ
https://www.youtube.com/watch?v=xwPiA0COi8k
https://www.youtube.com/watch?v=LRODESfNzcc
https://www.youtube.com/watch?v=I47ltgfkkik
https://www.youtube.com/watch?v=M6J9gitUP8I
https://www.youtube.com/watch?v=OxZ0JL4Bjzk
https://www.youtube.com/watch?v=IiBbKOTi12E
https://www.youtube.com/watch?v=2-dUHLHeyTY
https://www.youtube.com/watch?v=xyVJZKu7Euw
https://www.youtube.com/watch?v=miVkLplr42s
https://www.youtube.com/watch?v=OYnzYgoQOIg
https://www.youtube.com/watch?v=-Ms1ccPKDog
https://www.youtube.com/watch?v=mXhAf0n0wDc
https://www.youtube.com/watch?v=40aXDCV2oT4
https://www.youtube.com/watch?v=wTMbRd1xgY8
https://www.youtube.com/watch?v=xyVJZKu7Euw
https://www.youtube.com/watch?v=KtgddI4qIok
https://www.youtube.com/watch?v=lRrdUNh3s6M
https://www.youtube.com/watch?v=c-iK1SCCINc
https://www.youtube.com/watch?v=8XtrOWpGez0
https://learnzillion.com/lesson_plans/9003-write-linear-equations-from-tables
https://www.youtube.com/watch?v=Qo1_xkv2w_M
https://www.youtube.com/watch?v=lpXS3qBQClI
https://www.youtube.com/watch?v=u9YZxBh1AxQ
https://learnzillion.com/lesson_plans/7419-write-the-equation-of-a-line-using-information-from-a-graph
https://www.youtube.com/watch?v=LGoHJe6kwds
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope-intercept-form/v/equation-of-a-line-3
https://www.youtube.com/watch?v=rvcfSuLPfgc
https://www.khanacademy.org/math/algebra-basics/core-algebra-graphing-lines-slope/core-algebra-equation-of-a-line/v/equation-of-a-line-2
https://www.youtube.com/watch?v=LPFrV-QhQE4
https://whttps://www.youtube.com/watch?v=TFzLXThqVNQ
ww.youtube.com/watch?v=aDcJ71SYDrc
https://www.youtube.com/watch?v=CKWDRYHgbgA
https://www.youtube.com/watch?v=wtLGDhVoxvs
https://www.youtube.com/watch?v=MfkMsY7I6qw
https://www.youtube.com/watch?v=5a6zpfl50go
https://www.youtube.com/watch?v=YnUqLZFDXUI
https://www.youtube.com/watch?v=8SFk17Ea5wo
https://www.youtube.com/watch?v=kf-o_CcTKH8
https://www.youtube.com/watch?v=8kRG7jlBMAY
https://www.youtube.com/watch?v=4FiLXf2fKSY
http://www.purplemath.com/modules/systlin4.htm
http://www.regentsprep.org/regents/math/algebra/ae3/algsys.htm
http://www.coolmath.com/algebra/12-2x2-systems-of-equations/02-solving-by-substitution-01
http://www.coolmath.com/algebra/12-2x2-systems-of-equations/03-solving-by-elimination-addition-01
http://www.purplemath.com/modules/systlin5.htm
https://www.youtube.com/watch?v=tUk9qhn1lTo
https://www.youtube.com/watch?v=BGk-05Nnmw0
https://www.youtube.com/watch?v=il2Mf5706hk
https://www.youtube.com/watch?v=poLkt6Vitew&feature=iv&src_vid=JDmmRVUKQww&annotation_id=annotation_2853662543
https://www.youtube.com/watch?v=AeY7CWLayoM
https://www.youtube.com/watch?v=mWrvZdxQ0_A
https://www.youtube.com/watch?v=ydOu6ntew6w
https://www.youtube.com/watch?v=fN0awd3SqCk&ebc=ANyPxKomaeZveqCE0FAlND2oCCwY8z0toAodbIczXHV4aHgm6onxG3-huO-Qwt0EBDMYGetrCMJalJYX_qlu7DHC-6nYMAyS8A
https://learnzillion.com/lesson_plans/8479-calculate-the-scale-factor-of-a-dilation
https://www.youtube.com/watch?v=avw1vOwjBL0
https://www.youtube.com/watch?v=5trp4U4rmLM
https://www.youtube.com/watch?v=9TIC3mMVJq8
https://www.youtube.com/watch?v=XdjH_EWhCZ0
https://www.youtube.com/watch?v=GWHzyDyjDzQ
https://www.youtube.com/watch?v=ZdDTkoImkPU
https://www.youtube.com/watch?v=14tF7OIpqRk
https://www.youtube.com/watch?v=PO4zdUQyAjo
https://www.youtube.com/watch?v=QbU_jNhIWEA
https://www.youtube.com/watch?v=TzTr5zbg3tE
https://www.youtube.com/watch?v=z2LHYojmDO0
https://www.youtube.com/watch?v=5trp4U4rmLM
https://www.youtube.com/watch?v=wtLGDhVoxvshttps://learnzillion.com/lesson_plans/7419-write-the-equation-of-a-line-using-information-from-a-graph
https://www.youtube.com/watch?v=KsgWLV3RiRQ
https://www.youtube.com/watch?v=w_hph89OA8I
https://www.youtube.com/watch?v=ahtHbGYSZ-4
https://www.youtube.com/watch?v=MByd3HYWwRE
https://www.youtube.com/watch?v=zanq7gmXY88
https://www.youtube.com/watch?v=uMz4Hause-o
https://www.youtube.com/watch?v=V6pZyY6mM3g
https://www.youtube.com/watch?v=tg0Z--pmPog
https://www.youtube.com/watch?v=YX_OxBfsvbk
https://www.youtube.com/watch?v=fbCILSpOcwg
https://www.youtube.com/watch?v=nbopLhP4kpo
https://www.youtube.com/watch?v=BbX44YSsQ2I
https://www.youtube.com/watch?v=D_y_owf1WsI
https://www.youtube.com/watch?t=250&v=0gn5Y16Pk2U
https://www.youtube.com/watch?v=k22O8zr9yio
https://www.youtube.com/watch?v=302TotMfNFk
https://www.youtube.com/watch?v=vCJ-zRQSguQ
https://www.youtube.com/watch?v=xwPiA0COi8k
https://www.youtube.com/watch?v=LRODESfNzcc
https://www.youtube.com/watch?v=I47ltgfkkik
https://www.youtube.com/watch?v=M6J9gitUP8I
https://www.youtube.com/watch?v=OxZ0JL4Bjzk
https://www.youtube.com/watch?v=IiBbKOTi12E
https://www.youtube.com/watch?v=2-dUHLHeyTY
https://www.youtube.com/watch?v=xyVJZKu7Euw
https://www.youtube.com/watch?v=miVkLplr42s
https://www.youtube.com/watch?v=OYnzYgoQOIg
https://www.youtube.com/watch?v=-Ms1ccPKDog
https://www.youtube.com/watch?v=mXhAf0n0wDc
https://www.youtube.com/watch?v=40aXDCV2oT4
https://www.youtube.com/watch?v=wTMbRd1xgY8
https://www.youtube.com/watch?v=xyVJZKu7Euw
https://www.youtube.com/watch?v=KtgddI4qIok
https://www.youtube.com/watch?v=lRrdUNh3s6M
https://www.youtube.com/watch?v=c-iK1SCCINc
https://www.youtube.com/watch?v=8XtrOWpGez0
https://learnzillion.com/lesson_plans/9003-write-linear-equations-from-tables
https://www.youtube.com/watch?v=Qo1_xkv2w_M
https://www.youtube.com/watch?v=lpXS3qBQClI
https://www.youtube.com/watch?v=u9YZxBh1AxQ
https://learnzillion.com/lesson_plans/7419-write-the-equation-of-a-line-using-information-from-a-graph
https://www.youtube.com/watch?v=LGoHJe6kwds
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope-intercept-form/v/equation-of-a-line-3
https://www.youtube.com/watch?v=rvcfSuLPfgc
https://www.khanacademy.org/math/algebra-basics/core-algebra-graphing-lines-slope/core-algebra-equation-of-a-line/v/equation-of-a-line-2
https://www.youtube.com/watch?v=LPFrV-QhQE4
https://whttps://www.youtube.com/watch?v=TFzLXThqVNQ
ww.youtube.com/watch?v=aDcJ71SYDrc
https://www.youtube.com/watch?v=CKWDRYHgbgA
https://www.youtube.com/watch?v=wtLGDhVoxvs
https://www.youtube.com/watch?v=MfkMsY7I6qw
https://www.youtube.com/watch?v=5a6zpfl50go
https://www.youtube.com/watch?v=YnUqLZFDXUI
https://www.youtube.com/watch?v=8SFk17Ea5wo
https://www.youtube.com/watch?v=kf-o_CcTKH8
https://www.youtube.com/watch?v=8kRG7jlBMAY
https://www.youtube.com/watch?v=4FiLXf2fKSY
http://www.purplemath.com/modules/systlin4.htm
http://www.regentsprep.org/regents/math/algebra/ae3/algsys.htm
http://www.coolmath.com/algebra/12-2x2-systems-of-equations/02-solving-by-substitution-01
http://www.coolmath.com/algebra/12-2x2-systems-of-equations/03-solving-by-elimination-addition-01
http://www.purplemath.com/modules/systlin5.htm
https://www.youtube.com/watch?v=tUk9qhn1lTo
https://www.youtube.com/watch?v=BGk-05Nnmw0
https://www.youtube.com/watch?v=il2Mf5706hk
https://www.youtube.com/watch?v=poLkt6Vitew&feature=iv&src_vid=JDmmRVUKQww&annotation_id=annotation_2853662543
https://www.youtube.com/watch?v=AeY7CWLayoM
https://www.youtube.com/watch?v=mWrvZdxQ0_A
https://www.youtube.com/watch?v=ydOu6ntew6w
https://www.youtube.com/watch?v=fN0awd3SqCk&ebc=ANyPxKomaeZveqCE0FAlND2oCCwY8z0toAodbIczXHV4aHgm6onxG3-huO-Qwt0EBDMYGetrCMJalJYX_qlu7DHC-6nYMAyS8A
https://learnzillion.com/lesson_plans/8479-calculate-the-scale-factor-of-a-dilation
https://www.youtube.com/watch?v=avw1vOwjBL0
https://www.youtube.com/watch?v=5trp4U4rmLM
https://www.youtube.com/watch?v=9TIC3mMVJq8
https://www.youtube.com/watch?v=XdjH_EWhCZ0
https://www.youtube.com/watch?v=GWHzyDyjDzQ
https://www.youtube.com/watch?v=ZdDTkoImkPU
https://www.youtube.com/watch?v=14tF7OIpqRk
https://www.youtube.com/watch?v=PO4zdUQyAjo
https://www.youtube.com/watch?v=QbU_jNhIWEA
https://www.youtube.com/watch?v=TzTr5zbg3tE
https://www.youtube.com/watch?v=z2LHYojmDO0
Worksheets
http://www.kutasoftware.com/FreeWorksheets/Alg1Worksheets/Systems%20of%20Equations%20Substitution.pdf
http://www.math-aids.com/Algebra/Pre-Algebra/Systems/Solve_Equations.html
http://cdn.kutasoftware.com/Worksheets/Alg1/Systems%20of%20Equations%20Elimination.pdf
http://www.mathworksheets4kids.com/equations/systems.html
http://www.kutasoftware.com/FreeWorksheets/Alg1Worksheets/Systems%20of%20Equations%20Substitution.pdf
http://www.math-aids.com/Algebra/Pre-Algebra/Systems/Solve_Equations.html
http://cdn.kutasoftware.com/Worksheets/Alg1/Systems%20of%20Equations%20Elimination.pdf
http://www.mathworksheets4kids.com/equations/systems.html