Peter lee

x is partly constant and partly various as y, when y=2, x=0 and when y=6, x=20. Find x when y=3. Solution. x=ky + c 0=2k + c ----<1> 20=6k + c ----<2> Substrate 1 from 2 20 = -4k Add 4 to both side 20+4 = -4+4k 24=k Sub.k=24 into <1> 0=2×24+c 0=48+c C=48...