Writing Two-Variable Quadratic Inequalities Answers
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1
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On a coordinate plane, a parabola with a dashed boundary line opens up. It goes through (negative 6, 0), (negative 4, negative 44), has a vertex at (6, negative 160), and goes through (18, 0).
A
y greater-than-or-equal-to (x + 6)(x minus 18)
B
y greater-than (x minus 6)(x + 18)
C
y greater-than (x + 6)(x minus 18)
D
Option
2
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After 4 seconds, a launched projectile reaches a maximum height of 60 feet. The projectile is launched from a height of 12 feet.
A
y ≥ –3x2 + 24x + 12B
y ≥ 3x2 – 24x – 12C
y ≤ –3x2 + 24x +12D
y ≤ 3x2 – 24x – 123
On a coordinate plane, a parabola with a solid boundary line opens up. It goes through (negative 1, 0), has a vertex at (4, negative 125), and goes through (9, 0).
A
y greater-than-or-equal-to x squared + 8 x + 9
B
y greater-than-or-equal-to x squared minus 8 x minus 9
C
y greater-than-or-equal-to 5 x squared minus 40 x minus 45
D
y greater-than-or-equal-to 5 x squared + 40 x + 45
4
Which is the inequality in factored form that represents the region greater than or equal to the quadratic function with zeros –3.5 and 11.5 and includes the point (8.5, –54) on the boundary?
A
y greater-than-or-equal-to three-halves (x minus 3.5)(x + 11.5)
B
y greater-than-or-equal-to negative three-halves (x + 3.5)(x minus 11.5)
C
y greater-than-or-equal-to negative three-halves (x minus 3.5)(x + 11.5)
D
y greater-than-or-equal-to three-halves (x + 3.5) (x minus 11.5)
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