If y varies directly with x, there is a constant k such that
y = k*x
y = k*x
If Y Varies Directly With X, Write An Equation For The Direct Variation. Then Find Each Value. I Know The Answer But Do Not Know How To Write The Equation?
The distance that a body falls from rest varies directly as the square of the time of the fall.
Graph this
Graph this
You write the equation, so start out thinking of the direct variation formula
y=kx
if you are given an order pair
ex) (5,3)
the equation would look like this
3=k(5)
k=3/5
y=3/5x
done....
y=kx
if you are given an order pair
ex) (5,3)
the equation would look like this
3=k(5)
k=3/5
y=3/5x
done....