Question 867679
let V be volume, P be pressure an k be the constant of proportionality
V = k / P, then we have
a) 100 = k / 200
k = 20000
V = 20000 / P
b) V = 20000 / 120 = 166.67
c) 150 = 20000 / P
P = 20000 / 150 = 133.33
d) graph of equation is
{{{ graph( 300, 200, -400, 400, -500, 500, 20000/x) }}}