A Firm Has the Production Function F(x₁, X₂)= X⁰

Multiple Choice

A firm has the production function f(x₁, x₂) = x^0.80₁x^0.20₂.The isoquant on which output is 70^2/10 has the equation

A) x₂ =70x⁵₁.
B) x₁/x₂ = 4.
C) x₂ = 70x^-4₁.
D) x₂ = 70x^-0.20₁.
E) x₁ = 0.20x^-0.80₂.