Answer:
Two similar event happening at a time
Step-by-step explanation:
y = 2x + 10......(1)
y = x + 15.........(2)
Equating the two equations
2x + 10 = x + 15
2x - x = 15 - 10
x = 5
And y = x + 15.........(2)
Putting x = 5
y = 5 + 15
y = 20
The solution implies for every change in x there is 4times the change in y
