# Find costant that satisfies the variance

#### valentina89

##### New Member
Hi,

I have this regression model :
$$Y_i=B_1+B_2logx_i+2e_i$$

$$e_i$$~N(0,σ2)

I am asked to find the constant :

Y∗=y c that satisfies V(Y∗)=σ^2

I have some doubts ... I would say that the constant is equal to 1/2 ?