The Model $\hat { Y }$ = $b _ { 0 } x _ { 1 } ^ { b } 1 x _ { 2 } ^ { b _ { 2 } }$

The model $\hat { Y }$ = $b _ { 0 } x _ { 1 } ^ { b } 1 x _ { 2 } ^ { b _ { 2 } }$ is referred to as a multiplicative model with two predictor variables.