Answer:
Step-by-step explanation:
Formula for direct variation is y=kx, where k represents the constant. So, we solve for "k" first given the "x" and "y" variables.
Read "y varies directly as x" when y=2, x=10:
2 = k(10)
2 = k(10)
10 10
1
5 = k
Now that you found "k" you can substitute that into equation with the other given variables:
y = (1/5)(-25)= -5
