type 4 inter        -43.32      2.371
type 4 slope    -5.685e-07  4.569e-07
type 2 inter         -37.8     0.3298
type 2 slope    +5.116e-07  5.784e-08
type 1 inter        -35.56     0.2116
type 1 slope    +8.537e-07  4.253e-08