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38 votes
38 votes
Is the discriminant of f positive, zero, or negative ?

Is the discriminant of f positive, zero, or negative ?-example-1
User Darrinm
by
2.8k points

2 Answers

27 votes
27 votes

Answer:

positive

Explanation:


As\ shown\ in\ the\ figure


when\ g(x)=0,\ have\ 2\ real\ roots\ (b^2-4ac > 0,\ \ have\ 2\ real\ roots)


So\ the\ discriminant\ of\ g\ positive

I hope this helps you

:)

User Jeff Porter
by
3.2k points
18 votes
18 votes

Answer:

Negative

Explanation:

A quadratic that does not touch the x-axis always has a negative discriminant.

User Jeffrey Zhao
by
3.5k points