Determine whether the following statement is true.
If (r, a) and (v, f) both satisfy inverse variation, then
Correct Answer: A
Step 1: The formula for an inverse variation is xy = k, where
Step 2: Substitute (r, a) in the equation.
Step 3: ra = k
Step 4: Substitute (v, f) in the equation.
Step 5: vf = k
Step 6: So, ra = vf
Step 7: [Divide throughout by v.]
Step 8: [Divide throughout by a.]
Step 9: So, the given statement is true.