A table describes direct variation if the ratio of corresponding entries is
?
linear
constant
increasing
positive
.
A graph describes direct variation if it is a
?
straight line through the origin
line with positive slope
basic graph
constant of variation
.
An equation describes direct variation if it has the form
.
If two variables vary directly, we may also say that they are
?
growing exponentially
constant
independent
directly proportional
.