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alexandr402 [8]
3 years ago
5

If x= 6 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the

Mathematics
2 answers:
marissa [1.9K]3 years ago
6 0

Answer:

The discriminant of the equation is zero.

Step-by-step explanation:

The given graph is a quadratic equation. If x = 6 is the only x-intercept of the graph, then the roots must be equal.

The quadratic equation will have two solutions. Here the two solutions are equal x = 6.

If the roots are equal, then the discriminant is zero.

The factors of the quadratic equation (x - 6) (x - 6)

= x^2 - 6x - 6x + 36

= x^2 -12x + 36

Discriminant = b^2 - 4ac

Here a = 1, b = -12 and c = 36

Discriminant = (-12)^{2} - 4.1.36

= 144 - 144

= 0

Therefore, the answer is "The discriminant of the equation is zero."

denpristay [2]3 years ago
3 0

Answer:

discriminant is zero (0)

Step-by-step explanation:

Actually, you have a double root here:  {6, 6}:  "two real, equal roots."  That tells us immediately that the value of the discriminant was zero (0).

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