## Search found 42 matches

Fri May 01, 2009 12:04 am
Topic: The point where the medians of triangle meet
Replies: 2
Views: 1702

### Re: The point where the medians of triangle meet

Thank a lot, you guy! Thankful!
Fri May 01, 2009 12:02 am
Topic: Domain and range of quadratic function y = x^2 + 6x + 7
Replies: 2
Views: 53674

### Re: Domain and range of quadratic function y = x^2 + 6x + 7

Thanks a lot! This is a splendid website! ^^
Thu Apr 30, 2009 3:18 am
Topic: The point where the medians of triangle meet
Replies: 2
Views: 1702

### The point where the medians of triangle meet

EX : A(8, -2) , B(1,5) and C(4, -5) are vertices of triangle ABC.
We knew the equations of the three medians of this triangle are y = -0.36x + 0.9 , y = -1.7x + 6.7 , y = 13x - 57
How can i locate the point where the medians meet ?

Thanks a lot!
Thu Apr 30, 2009 3:14 am
Topic: Domain and range of quadratic function y = x^2 + 6x + 7
Replies: 2
Views: 53674

### Domain and range of quadratic function y = x^2 + 6x + 7

What are the domain and range of quadratic function ?
Ex : Find the domain and range of y = x^2 + 6x + 7

Thanks!
Sun Apr 26, 2009 11:37 pm
Topic: Collinear and non-collinear points
Replies: 2
Views: 3581

### Re: Collinear and non-collinear points

Thank a lot!
Sun Apr 26, 2009 6:43 pm
Topic: Collinear and non-collinear points
Replies: 2
Views: 3581

### Collinear and non-collinear points

Please, tell me what is the word "collinear points" and "non-collinear points" ?

And with 3 non-collinear points as vertices, how many different triangles can i draw ?

If given a choice of 4 points, no three of which are collinear, how many different triangles can i draw ?

THANKS!
Thu Apr 23, 2009 11:20 pm
Topic: Polynomial functions: finding equation from graph, etc.
Replies: 5
Views: 7272

### Re: Polynomial functions: finding equation from graph, etc.

Here is the answer for my problem : 1/ We have x - intercept is only -4 , that means the vertex of this function's graph will be (-4, 0), and this x-intercept or this zero will be Double root. As the theme, this polynomial function is a quadratic one, so it has two "square" (two zeros) or it is in f...
Thu Apr 23, 2009 10:50 pm
Topic: Finding solutions for 5th-degree polynomial functions
Replies: 4
Views: 23238

### Re: Finding solutions for 5th-degree polynomial functions

Thank you, guy a lot! Here is some steps that i did : We have y = x^5 - 6x^2 + 11x - 6 1st :Using calculator to find the visible x-intercepts by looking at the graph, we will see that this function has 3 x-intercepts, 1, 2, 3 Or (x-1)(x-2)(x-3) = x^3 - 6x^2 + 11x - 6 2nd :But we know that this is th...
Thu Apr 23, 2009 12:09 am
Topic: Polynomial functions: finding equation from graph, etc.
Replies: 5
Views: 7272

### Re: Polynomial functions: finding equation from graph, etc.

Thank a lot!
Wed Apr 22, 2009 2:13 am