Results 1 to 5 of 5
Like Tree1Thanks
  • 1 Post By highvoltage

Math Help - Graphs & Functions

  1. #1
    Junior Member
    Joined
    Oct 2010
    Posts
    63

    Graphs & Functions

    Hi Guys

    I missed a week of school due to going on a holiday and i got a maths test this wednesday, which the teacher is not giving me extra time to study for. He gave 2 practice questions on what we have been doing, but not a worked out example. If you guys can please answear this questions for me as i don't understand them. Also im in year 11 Maths Methods, the questions are:

    1. Find the standard form of the equation of the circle for which the endpoints of a diameter are (-2,3) and (4,-10)

    2. Write the slope-intercepts forms of the equation of the lines through the point (-8,3) and
    (a) parallel
    (b) perpendicular

    To the line 2x+3y=5


    Worked solutions to this questions will be truely appriciated, if you can please answear as quick as possible because i need move on to question 3 & 4 which are more difficult then these, which i dont have a understanding of. please help
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Junior Member
    Joined
    Mar 2012
    From
    California
    Posts
    44
    Thanks
    6

    Re: Graphs & Functions

    Graphs & Functions-mhf-03182012.jpg
    Thanks from iFuuZe
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Oct 2010
    Posts
    63

    Re: Graphs & Functions

    highvoltage you are a legend, thanks for taking your own time to help with this, I'm truely greatful
    Last edited by iFuuZe; March 18th 2012 at 09:58 PM.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member
    Joined
    Nov 2011
    From
    Crna Gora
    Posts
    420
    Thanks
    64

    Re: Graphs & Functions

    Quote Originally Posted by iFuuZe View Post
    Hi Guys

    I missed a week of school due to going on a holiday and i got a maths test this wednesday, which the teacher is not giving me extra time to study for. He gave 2 practice questions on what we have been doing, but not a worked out example. If you guys can please answear this questions for me as i don't understand them. Also im in year 11 Maths Methods, the questions are:

    1. Find the standard form of the equation of the circle for which the endpoints of a diameter are (-2,3) and (4,-10)

    2. Write the slope-intercepts forms of the equation of the lines through the point (-8,3) and
    (a) parallel
    (b) perpendicular

    To the line 2x+3y=5


    Worked solutions to this questions will be truely appriciated, if you can please answear as quick as possible because i need move on to question 3 & 4 which are more difficult then these, which i dont have a understanding of. please help
    1#

    (x-x_C)^2 + (y-y_C)^2 = r^2

    where :

    x_C=\frac{x_A+x_B}{2} ~\text{and}~y_C=\frac{y_A+y_B}{2}

    r=\frac{1}{2} \cdot \sqrt{(x_B-x_A)^2+(y_B-y_A)^2}

    2#

    Let :

    p : y=m_1 x+n_1

    q : y=m_2 x+n_2

    then :

    \begin{cases}m_1=m_2, & \text{if } p \parallel q \\m_1 \cdot m_2=-1, & \text{if } p \perp q\end{cases}
    Follow Math Help Forum on Facebook and Google+

  5. #5
    MHF Contributor
    Prove It's Avatar
    Joined
    Aug 2008
    Posts
    11,319
    Thanks
    1238

    Re: Graphs & Functions

    Quote Originally Posted by iFuuZe View Post
    Hi Guys

    I missed a week of school due to going on a holiday and i got a maths test this wednesday, which the teacher is not giving me extra time to study for. He gave 2 practice questions on what we have been doing, but not a worked out example. If you guys can please answear this questions for me as i don't understand them. Also im in year 11 Maths Methods, the questions are:

    1. Find the standard form of the equation of the circle for which the endpoints of a diameter are (-2,3) and (4,-10)

    2. Write the slope-intercepts forms of the equation of the lines through the point (-8,3) and
    (a) parallel
    (b) perpendicular

    To the line 2x+3y=5


    Worked solutions to this questions will be truely appriciated, if you can please answear as quick as possible because i need move on to question 3 & 4 which are more difficult then these, which i dont have a understanding of. please help
    I'm a private maths tutor. If you live in Melbourne and want some tutoring, send me a PM...
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. [SOLVED] Sum of two functions (graphs)
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: July 18th 2011, 06:26 PM
  2. Functions and their graphs
    Posted in the Pre-Calculus Forum
    Replies: 11
    Last Post: September 20th 2010, 03:25 AM
  3. Functions and their graphs
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: December 16th 2008, 09:50 PM
  4. Functions and Their Graphs
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: July 16th 2008, 11:55 PM
  5. Functions and graphs...
    Posted in the Algebra Forum
    Replies: 1
    Last Post: February 26th 2006, 10:09 AM

Search Tags


/mathhelpforum @mathhelpforum