124k views
5 votes
Hello, I need some assistance with this homework question please for precalculusHW Q40

Hello, I need some assistance with this homework question please for precalculusHW-example-1
User Mwayi
by
4.6k points

1 Answer

7 votes

Step-by-step explanation

Since we have the function:


f(x)=3x^2+12x-5

The discriminant of the quadratic is given by the following expression:


b^2-4ac

Where a=3, b=12 and c=-5:

Plugging in the terms into the expression:


12^2-4*3*(-5)

Multiplying terms:


144+60

Adding numbers:


Discriminant=204

In conclusion, since the discriminant is >0 , the appropriate option is OPTION A.

User Sjors Miltenburg
by
5.0k points