type 4 inter         -1.67      3.371
type 4 slope    +5.003e-06  4.253e-06
type 2 inter        -2.024     0.1732
type 2 slope    +5.668e-06  2.171e-07
type 1 inter        -1.477     0.0908
type 1 slope    +4.805e-06  1.075e-07