Suppose y varies directly with x. If y = 6 when x = −2, find x when y is 9.

1 answer

The simplest to approach this problem would be to find the distance between the first x and y values.

6-(-2)=?

Use the number found and subtract it from your second y value "9"

9-?=??
You subtract because the x value is less than the y value as shown in the relationship between the first x & y values