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The equation of a parabola is (y−1)2=16(x+3) . What is the equation of the directrix of the parabola? Enter your answer in the box.

Respuesta :

(y−1)²=16(x+3)

4p=16

p=4

Vertex is (-3,1)
This is horizontal parabola (y²), that are turned to the right (16 is positive).

Directrix is going to be a line x=a
x=-3-4=-7
x=-7

Answer:

Make sure you write x=-7

Step-by-step explanation:

Make sure to write x=-7 on the answer, as the x= is not written for you.