7/10 is equivalent to 3.5/5 is one
The answer would be y = 6x.
The reason for this is that when we add a number in front of x, it makes it go up vertically by the factor of that number. So if we are to stretch the graph vertically, the only way we can do it is by making 6 the coefficient.
Let, the number = x
Then, x * 92% = 253
x = 253 / 0.92 [ 92% = 0.92 ]
x = 275
In short, Your Answer would be 275
Hope this helps!
