Answer

A-R; B-S ; C-P ; D-Q

Explanation

A) `p = x , 1/(V^2) = y = 1/(V^2) = y implies 1/V = sqrt(y) , PV` = constant
`implies x/sqrt(y)` = constant `implies y alpha x^2 implies` parabola.
B) `V = y , 1/T =x , V/T`= constant
`implies x.y=` constant `implies ` hyperbola
C) `PT = y,T^2 =x , P/T ` = constant
`implies y/x` = constant `implies y alpha x implies` linear.
D) `V = y , 1/(P^2) = x implies 1/(P) = sqrt(x) , PV` = constant
`implies y/(sqrtx) `= constant `implies x alpha y^2 implies` parabola .