Answer:
The value of y at x=-1 is 3/5.
Step-by-step explanation:
It is given that y varies directly with x. It means y is directly proportional to x.
.... (1)
where, k is constant of proportionality.
It is given that y=-3 when x=5.
Substitute y=-3 and x=5 in equation (1).
The value of k is -3/5.
.... (2)
We need to find the value of y when x=-1.
Substitute x=-1 in equation (2).
Therefore the value of y at x=-1 is 3/5.