A direct variation includes the points ( – 5, – 20) and (n,8). Find n.

Discussion in 'Calculator Requests' started by math_celebrity, Sep 21, 2021.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    A direct variation includes the points ( – 5, – 20) and (n,8). Find n.

    Slopes are proportional for rise over run. Set up a proportion of x's to y's:
    -5/n = -20/8

    To solve this proportion for n, we type it in our math engine and we get:
    n = 2
     

Share This Page