View Full Version : math smarts lost over summer

08-22-2005, 09:56 PM
How do you find the slope of a line when given the endpoints and the equasion y=mx+b (and what is b, anyway?) I forget how this equation works.

How do you factor a polynomial?

How do you solve inequalities and graph them on a number line?
Om a coordinate plane?

How do you add and subtract equasions?

How do you find the ordered pair solution to (x+2y<5, 3x-y>1)?

What does < or > with a line underneath it mean?

How do you expand and simplify equasions?

What is a quadratic equasion?

If this is too much, I'm really sorry :? and it's ok if no one answers. I really forgot a lot and I threw out my notes :oops: .

08-22-2005, 11:14 PM
That is quite a laundry list. Why don't you brouse thru the math lessons over on the right ---->
You could start with
point slope form
systems of linear equations
Then come back if you get stuck with problems.

08-22-2005, 11:37 PM
Just to help you along...

x & y are the coordinates on the grapk(line)
m is the slope or gradient
b is the y axis intercept (ie the point 0,b where x= 0)

the slope is found by using
where the x & y are the end points.