Answer: on point -10
Step-by-step explanation:
Because 2*-5 is -10.
Answer:
2.5
Step-by-step explanation:
You know the roots to the quadratic, so you know how the quadratic can be factorized:
![z^2+az+b=(z-(-7+2i))(z-(-7-2i))=(z+7-2i)(z+7+2i)](https://tex.z-dn.net/?f=z%5E2%2Baz%2Bb%3D%28z-%28-7%2B2i%29%29%28z-%28-7-2i%29%29%3D%28z%2B7-2i%29%28z%2B7%2B2i%29)
Expanding the right side gives
![z^2+az+b=z^2+14z+4](https://tex.z-dn.net/?f=z%5E2%2Baz%2Bb%3Dz%5E2%2B14z%2B4)
Matching up the coefficients tells us
and
, so
.
Answer:
hey I was finding u from long time please be
Answer:
f(3)= 5
Step-by-step explanation:
f(x)= f(value).
You can trace value of x above the graph and you get 5. when x is 3, y is 5.