A quadratic equation has exactly one real number solution. Which is the value of its discriminant?
O-1
O0
O 1
O2

The determinant must be zero.

Step-by-step explanation:

For a quadratic equation

a*x^2 + b*x + c = 0

The discriminant is:

D = b^2 - 4*a*c

and the solutions can be finded as:

If D > 0 we have two real solutions

if D = 0 we only have one solution, x = -b/2a

If D < 0 we will have comples solutions, as we will have a negative number inside a square root.

Knowing that for this equation we have only one solution, then we can know that the determinant must be equal to zero.

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length