What is the discriminant of the quadratic equation 9x^2– 8x – 2 = 0?

Step-by-step explanation:

The quadratic formula helps us find the roots of a quadratic equation. The equation is:

where

The discriminant is just the part under the square root. This helps tell us if there are two, one, or zero real solutions.

The discriminant is:

We are given the quadratic:

Therefore, a is 9, b is -8, and c is -2.

Solve the exponent.

Multiply 4, 9, and -2.

The discriminant is 136. Since it is a non-zero, positive number, this quadratic has 2 real solutions/zeroes/roots.

i'm pretty sure it's 477,585,296, but perhaps my math is incorrect.

after going and makeing graphs i would go with a,

there is nothing that is matches the graph. if there was i would show you. but therefore my answer is a.

hope i

-lavira: )