Is the discriminant of FFF positive zero or negative?

Is the discriminant of FFF positive zero or negative?

The answer is positive.

How do you tell if the discriminant is negative on a graph?

If the discriminant is negative, that means that the roots of the quadratic function are not real numbers. In other words, the graph has no x-intercepts. Of the four choices that are given, choices (B) and (C) are both possible. If the discriminant is negative the roots are complex.

How do you tell if the discriminant is positive on a graph?

Remember, the solutions to a quadratic equation are often called roots or zeros. The roots/zeros/solutions are the the values for x that make the equation equal to 0. On a graph, this will be where the parabola crosses the x-axis. Anytime the discriminant is positive, the graph will cross the x-axis twice.

What is the discriminant of x² 0?

8

What to do if the discriminant is negative?

If the discriminant is negative, that means there is a negative number under the square root in the quadratic formula. You may have learned in the past that you “can’t take the square root of a negative number.” The truth is that you can take the square root of a negative number, but the answer is not real.

How many real roots does the quadratic equation x2 8x 12 0?

therefore, there are only 2 roots for this equation.

What are the roots of the quadratic equation 0 2×2 12x 14?

Hence, the roots of the given equation are -7 and 1.

Which of the following has no real roots?

Hence, the equation has real roots. Hence x2-4x+3√2=0 has no real roots.

Which of the following is real root?

A quadratic equation, ax2 + bx + c = 0; a ≠ 0 will have two distinct real roots if its discriminant, D = b2 – 4ac > 0. Hence, the equation x2 –3x + 4 = 0 has no real roots. Hence, the equation 2×2 + x – 1 = 0 has two distinct real roots.

What are the roots of the quadratic equation x² 3x 10 0?

Roots are 4 and 3.

Which of the following has 2 as a root?

2x² – 7x + 6 …… this is your correct answer ….

Which of the following equations has 1 as a root?

∴ Option (c) has -1 as a root.

Which of the following equations has 5 as a root?

Right Answer is: C Putting the value of x as 5 in the equations given in the options, we get only equation given in option C satisfies the relation, i.e. Therefore, option C is the required answer.

Which of the following has not 2 as a root?

For a equation to have a number as it’s root the number must satisfy the equation. => (2)² – 4×2 +5 = 1 , 2 is not a root as 2 doesn’t satisfy the equation. => (2)² + 3×2 -12 = -2 , 2 is not a root as 2 doesn’t satisfy the equation. => 2(2)² – 7×2 +6 = 0 , 2 is a root as 2 satisfies the equation.

Which one of the following is not a quadratic equation?

option B is a linear equation, not a quadratic equation.