California Standards Test: Algebra II

Learn more: http://www.khanacademy.org/video?v=wz...
1-5, absolute value equations and systems of equations

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  Education

[cypress kee]

You got number 4 wrong

Z = -8

x = 8

y = 0

Get it right before you make a video about it

[khanacademy]

Your solution doesn't work for the first equation: 2(8)-0+3(-8) = 16 - 0 -24 = -8, not +8. The first and last equiations are parrallel planes so there is no solution.

[jackuy12345]

lol i think u must be a math nerd that save the world!!!!!!

[Li Fo]

Im in algebra 1.I'm in 6th grade and I understand this.

[Michael Rivas]

some kids take it at 14 or 13 but it depends where you are in math

[William Boyle]

fail.

[petejwill2650]

i'm from the UK and would like to know, at what age do people take this test?

Is this the equivalent to GCSE's at age 16? Thanks

[animechix112]

Hi, I just wanted to say that you are amazing! I love you! My friend and I are high school sophomores and we will be taking our CST's for Algebra II a week and two days from now, and we have been immensely stressed over our math CST's. Luckily, my friend found you videos! After watching this video, we are amazed at how well you teach! It's so clear and understandable.

Anyways, we just wanted to say your awesome! Please continue to make more! Thank you for your videos!

[Dawon Song]

Dude, he IS right.

[decon117]

you, saved me. my teacher is no good at explaining this stuff, and he no help at all. i love you no homo.

[slashuur8760]

thank god for people like this

[SpoiledLogic]

for a problem like number 3, you can make a system of 2 linear equations with 2 unknowns like Khan did, but also you can make one equation with one unknown. Let x = # of dozens of roses Let 17-x = # of dozens of carnations. Then your equation with one unknown is 15(x) + 8(17-x) = 192

[SpoiledLogic]

munky445 needs to take a linear algebra course