6
QuizMultiple Choice
Conic Inequalities
Question 6 • Precalculus
Which graph represents y > 2x2 – 8x + 4?
Answer
A
On a coordinate plane, a parabola opens up and goes through (0, 4), has a vertex at (2, negative 4), and goes through (4, 4). Everything below and outside of the parabola is shaded.
B
On a coordinate plane, a parabola opens up and goes through (negative 4, 4), has a vertex at (negative 2, negative 4), and goes through (0, 4). Everything below and outside of the parabola is shaded.
C
On a coordinate plane, a parabola opens up and goes through (0, 4), has a vertex at (2, negative 4), and goes through (4, 4). Everything above and inside of the parabola is shaded.
D
On a coordinate plane, a parabola opens up and goes through (negative 4, 4), has a vertex at (negative 2, negative 4), and goes through (0, 4). Everything above and inside of the parabola is shaded.