Determine which functions have two real number zeros by calculating the discriminant, b2 - 4ac. Check all that

apply

f (x) = x2 + 6x + 8

g (x) = x2 + 4x + 8

h (x) = x2 - 12x + 32

k (x) = x2 + 4x - 1

p (x) = 5x2 + 5x + 4

t (x) = x2 - 2x - 15

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Guest

14 March, 21:26

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Answers (2)

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Terrence · Answer 1

Find the standard form of the equation of the parabola with a focus at (-4, 0) and a directrix at x = 4.

Derek · Answer 2

A, C, D, F

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Determine which functions have two real number zeros by calculating the discriminant, b2 - 4ac. Check all thatapplyf (x) = x2 + 6x + 8g (x) = x2 + 4x + 8h (x) = x2 - 12x + 32k (x) = x2 + 4x - 1p (x) = 5x2 + 5x + 4t (x) = x2 - 2x - 15