contestada

Suppose that y varies directly with x. Write the equation that represents this relationship if x is -7 and yis - 42 ? Find the value of y when x is 6.​

Respuesta :

quasarJose

Answer:

36

Step-by-step explanation:

if y varies directly as x;

       y ∝ x

mathematically,

        y  = kx

k is the constant of proportionality;

     if x = -7, y = -42

          -42  = k x -7

               k  = 6

Now,

        x = 6;

  y  = kx

  y = 6x 6 = 36