a) Suppose you are given model with two explanatory variables such that: Y₁ = a + B₁x₁i + B₂x₂₁x + U₁, i = 1,2,...n Using partial differentiation derive expressions for the expressions for the intercept and slope coefficients for the model above.

Please help me choose and answer with a step by step explan

Consider the linearizable functions as follows. Find new transformed variables (x, y, B or B as you need) to linearize the functions below. 21 y= Biz1+ Bo.

Sketch the level curves of the function f(x, y) = = -8 -7 -6 -5 -4 -3 9 y² for c = -4, -1, 0, 1, 4. 5 6