Basics of Direct Variation
What is direct variation?
A relationship where one quantity is a constant multiple of another.
What is the general equation for direct variation?
y=kx
If y=3x, what is the constant of variation kkk?
k = 3
Identify whether the following represents direct variation: y=2x+3
No, it does not represent direct variation.
If k=5, what is the value of y when x=4?
y=20