Identify the domain of the equation y = x2 − 6x + 1.
2 answers:
Answer:
The correct option is 4.
Step-by-step explanation:
Domain is the set of all possible inputs for which the given function is defined.
The given function is
It is a second degree polynomial. These type of polynomial are defined for all real values of x. So, the domain of the given function is all real numbers.
Therefore the correct option is 4.
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Given:
The center of the circle = (-2,1).
Circle passes through the point (-5,3).
To find:
The equation of the circle.
Solution:
Radius is the distance between the center of the circle and any point on the circle. So, radius of the circle is the distance between the points (-2,1) and (-5,3).
On further simplification, we get
The standard form of a circle is:
Where, (h,k) is the center of the circle and r is the radius of the circle.
Substitute h=-2, k=1 and .
Therefore, the equation of the circle is .
Keep in mind x >0 since x is a measurement of length.
