1. ## Test preparation

Hey guys

Im new here and its good to see that these forums are active and full of friendly people. I was wondering if someone could help me with some test preparation. My unit that I am revising on consists of Linear algebra/functions and I need help getting some videos to cover certain topics.

• Solve equations "Y"
• Determine if an equation is linear "X"
• Tell the difference between a function and a relation "Y"
• State the domain and range of a function or relation "Y"
• State if a function is discrete or continuous "X"
• Find the gradient of a linear function, graphically and algebraically "Y"
• Find the x and y intercepts of a linear function "X"
• Find the equation of a linear function "X"
• Find a function that is parallel or perpendicular to another function "Y"
• Determine if points are collinear "Y"
• Find the distance between two points "Y"
• Find the midpoint between two points "Y"

That is everything I need to know, if it has an "X" on it then I need help, if it has a "Y" on it then I don't. I would greatly appreciate if anyone could recommend some videos for me to watch that will cover the topics with "X's" on them. I am currently doing year 11 maths B in Australia (Hardest math besides extension). I really want to do well and I'm going to be studying for this to insure I get a good result. If someone could post up some videos that cover the topics that I need help with it would be greatly appreciated. Sorry if this is in the wrong section, I'm new here .

Thankyou

2. ## Re: Test preparation

Hey. Just so you know, this really shouldn't be in the advanced algebra section. Anyways, I don't have any videos, but I suppose that making some would be a good idea, allthough I don't really have the time. Regardless, there's an oranization called Kahn Academy that you might want to check out. He probally has videos on this sort of thing on his website, and these videos are free as Kahn Academy is a nonprofit. Anyways, here's a quick run down of the sorts of things you do would need to check out above.

1. Solve equations "Y" I'm assuming by this you mean that you have a system of linear equations. In this case, then what you do is the following. Bring any constant terms in any equantion to one side. Call the variables $x_1,...,x_n$. Then, make sure that you have 0s for the xs that don't appear in the

3. ## Re: Test preparation

Im new here and its good to see that these forums are active and full of friendly people. I was wondering if someone could help me with some test preparation. My unit that I am revising on consists of Linear algebra/functions and I need help getting some videos to cover certain topics.

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