Answer:
The discriminant D=0
Step-by-step explanation:
For the duadratic polynomial
the discriminant is

In your case, for the polynomial 
Answer:
The region in red contains the solutions to the system
Step-by-step explanation:
Check the graph below.
Answer:
y = 1/2x - 5
Step-by-step explanation:
I'm going to use slope-intercept form. Your y-intercept is already shown when x is zero, which is (0,-5). Your slope is defined as rise over run, so 1/2 in this case. This gives you an equation of f(x) = 1/2x-5
Answer:
2.5
Step-by-step explanation:
Answer: n1 = -6, n2 = 6
Step-by-step explanation:
![\sqrt[]{n^{2} } =\sqrt{36}\\n=+-6\\n=-6\\n=6](https://tex.z-dn.net/?f=%5Csqrt%5B%5D%7Bn%5E%7B2%7D%20%7D%20%3D%5Csqrt%7B36%7D%5C%5Cn%3D%2B-6%5C%5Cn%3D-6%5C%5Cn%3D6)