Question

Suppose y varies directly with x, and y = 8 when x = –6. What direct variation equation relates x and y? What is the value of y when x = –2

Answer 1

Y varies directly with X means that the quantity Y/ X is a constant. With the given pair of values, Y = 8, X = -6, find the constant's value. Then use the same relation to find Y when X = -2\[\frac {Y}{X}=m\]You need the value of m to do what needs to be done.

Answer 2

thanks!

Answer 3

A pleasure, Mademoiselle.

Answer 4

directly proportional means y/x = a constant
it will be a straight line with slope=constant