Question

What is the focus of the parabola given by the equation x = 3(y – 1)2 + 2?

(111 over 12, 1)

(2, 11 over 12)

(2, 11 over 12 x)

(21 over 12, 1)

Answer 1

What is the directrix of the parabola given by the equation x = Negative 1 over 4 y2?

x = 1

y = 1

x = –1

y = –1

Question 10 (Multiple Choice Worth 1 points)

What is the directrix of the parabola given by the equation x = 7y2 + 126y + 559?

x = –81 over 28

y = –81 over 28

x = –7 27 over 28

y = –7 27 over 28