Question

"4. Suppose y varies directly with x. Write a direct variation equation that relates x and y. Then find the value of y when x= 12. y = -10 when x = 2 "

Answer 1

5/ 2 x

Explanation:

Answer 2

If y varies directly with x:
y = k * x
When x = 2, y = - 10.
- 10 = k * 2
k = - 10 : 2
k = - 5
Therefore: y = - 5 x
And when x = 12 ;
y = - 5 * 12
Answer:
y = - 60