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.

1) is right

step-by-step explanation:

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

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