Please help with this question or direct me
Determine the discriminant of x^2 = 4
Answers:
17
16
-15
-10
For a quadratic equation
ax²+bx+c = 0 ...(1)
the discriminant is the algebraic value of
b²-4ac
For any given quadratic, you would rearrange it to have the form of equation (1) above, and calculate b²-4ac.
For example,
x^2 = 4
can be written as
x^2 + 0x -4 =0
where a=1, b=0, c=-4.
You can now proceed to calculate the discriminant.
Thank you
You're welcome!
To find the discriminant of a quadratic equation, we start with the general form of a quadratic equation:
ax^2 + bx + c = 0
In this case, the given equation is:
x^2 = 4
Comparing this equation to the general form, we see that a = 1, b = 0, and c = -4.
The discriminant is calculated using the formula: discriminant = b^2 - 4ac.
Substituting the values from our equation, we have:
discriminant = 0^2 - 4(1)(-4)
Simplifying further:
discriminant = 0 + 16
Therefore, the discriminant is 16.
Out of the given answer choices, the correct answer is 16.