If y varies directly as x and y =5 when x=2, how do you find y when x=6?
1 Answer
May 12, 2018
The relationship between x and y is
Explanation:
The way I read your question is that we can write the relation between x and y on the form
In this case we know that
In that case we can just plug in x=6 in the equation, in which case we get
An easy way of finding the same result is with a graph:
graph{y=5/2x [-9.67, 30.87, -1.92, 18.34]}
Reading off our graph we can see that the line goes through (2, 5) and (6, 1).
