If y varies directly with x, find the value of y when x = 27 for the direct variation with the given information. y = 7 when x = -9 y =​

Given:

y varies directly with x,

It is given that y = 7 when x = -9.

To find:

The value of y when x = 27 for the direct variation.

Solution:

It is given that y varies directly with x, so

            ...(i)

Where, k is the constant of proportionality.

It is given that y = 7 when x = -9. Putting these values in (i), we get

Putting in (i), we get

Putting ,  we get

Therefore, the required value is .

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.