Respuesta :
the minimum is (0,4)
the y intercept is (0,4)
there isn't an actual solution
Step 1: Subtract 4 from both sides.
81x^2+4=0
81x^2=-4
Step 2: Divide both sides by 81.
81x^2/81=-4/81
x^2=-4/81
Step 3: Take square root.
x=±[tex] \sqrt{\frac{-4}{81}} [/tex]
Answer: No real solutions.