Skip to content

Zone d’entraide

Question de l’élève

Secondaire 5 • 8m
screenshot-2025-04-07-212109.png

Hi, I do not understand how to solve this. Could you please help me?

Mathematics
avatar
avatar

{t c="richEditor.description.title"} {t c="richEditor.description.paragraphMenu"} {t c="richEditor.description.inlineMenu"} {t c="richEditor.description.embed"}

Explications (1)

  • Explication d'Alloprof

    Explication d'Alloprof

    Cette explication a été donnée par un membre de l'équipe d'Alloprof.

    Options
    Équipe Alloprof • 8m 9 Apr modifié

    Hi!


    First, you have two horizontal parabolas (one in green and one in blue), and a horizontal hyperbola (in yellow).

    image.png


    For the hyperbola, you need to find an equation of this form:

    image.png
    image.png


    You know that \(V_{2}\) is at x=2.

    image.png

    So, you can find the parameter \(a\).


    Then, you can identify a point on the hyperbola with the given dimensions 6x6, such as the point (3, 3).

    image.png


    Then, all you have to do is insert the coordinates of this point into the equation, then solve it to find the parameter \(b\).


    For parabolas, you need to find two equations in the following form :

    image.png
    image.png
    image.png


    In other words, we simply need to find the value of the parameter \(c\) for each of these parabolas.

    For the parabola in green, \(c\) will be positive, while for the parabola in yellow, \(c\) will be negative.

    image.png
    image.png


    We have a point for each of these parabolas.

    image.png


    So we can replace x and y in the equation with the coordinates of the point, then solve to find the parameter \(c\).


    I hope I was able to help you! Feel free to ask us more questions if you have any! :)

Poser une question