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by honest_denverco09
Fri May 01, 2009 12:04 am
Forum: Advanced Algebra ("pre-calculus")
Topic: The point where the medians of triangle meet
Replies: 2
Views: 1295

Re: The point where the medians of triangle meet

Thank a lot, you guy! Thankful! :clap:
by honest_denverco09
Fri May 01, 2009 12:02 am
Forum: Advanced Algebra ("pre-calculus")
Topic: Domain and range of quadratic function y = x^2 + 6x + 7
Replies: 2
Views: 32948

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

Thanks a lot! This is a splendid website! ^^ :clap:
by honest_denverco09
Thu Apr 30, 2009 3:18 am
Forum: Advanced Algebra ("pre-calculus")
Topic: The point where the medians of triangle meet
Replies: 2
Views: 1295

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! :wink:
by honest_denverco09
Thu Apr 30, 2009 3:14 am
Forum: Advanced Algebra ("pre-calculus")
Topic: Domain and range of quadratic function y = x^2 + 6x + 7
Replies: 2
Views: 32948

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!
by honest_denverco09
Sun Apr 26, 2009 6:43 pm
Forum: Advanced Algebra ("pre-calculus")
Topic: Collinear and non-collinear points
Replies: 2
Views: 2853

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!
by honest_denverco09
Thu Apr 23, 2009 11:20 pm
Forum: Advanced Algebra ("pre-calculus")
Topic: Polynomial functions: finding equation from graph, etc.
Replies: 5
Views: 5132

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 ...
by honest_denverco09
Thu Apr 23, 2009 10:50 pm
Forum: Advanced Algebra ("pre-calculus")
Topic: Finding solutions for 5th-degree polynomial functions
Replies: 4
Views: 5563

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...
by honest_denverco09
Wed Apr 22, 2009 2:13 am
Forum: Advanced Algebra ("pre-calculus")
Topic: Finding solutions for 5th-degree polynomial functions
Replies: 4
Views: 5563

Finding solutions for 5th-degree polynomial functions

Please help me to solve this function : y = x^5 - 6x^4 + 20x^3 - 60x^2 + 99x - 54
I know the answer are x = 1, x = 2, x = 3, x = 3i, x = -3i . Thanks!

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