Having issues figuring this out... :/ DIRECT VARIATION

Suppose y varies directly with x and y = 10 when x= -3 . What direct variation equation relates x and y? What is the value of y when x= -1?
A.) y= -3/10 x; 3/10
B.) y= 1/10 x; -3/10
C.) y= 10/3 x; -10/3
D.) y= -10/3 x; 10/3

Question

Having issues figuring this out... :/ DIRECT VARIATION

Suppose y varies directly with x and y = 10 when x= -3 . What direct variation equation relates x and y? What is the value of y when x= -1? 
A.) y= -3/10 x; 3/10 
B.) y= 1/10 x; -3/10 
C.) y= 10/3 x; -10/3
D.) y= -10/3 x; 10/3

amistre64 · Answer

you might want to preview your post ....

anonymous · Answer

y = k(x) if you find k you will find the variation just plug in the numbers you have for x and y and solve.