Answer:
there are 2 variables: C is the dependent variable and r is the independent variable
Step-by-step explanation:
given
C = 2πr
we know that the value of 2π doesn't change (because π = 3.14.. and doesn't change) hence 2π is a constant value.
The only two items in the formula that could possibly change are
C and r
When the value of r changes, it will affect the value of C (i.e the value of C is dependent on the value of x)
Therefore there are 2 variables: C is the dependent variable and r is the independent variable.
