The center of a circle is (0, -8). The radius is 9. What is the equation of the circle? Select all that apply.
1 answer:
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Answer:
Step-by-step explanation:
This is function composition. We will take the g function and plug it into the f function wherever we see an x. That will look like this when it's done but before it's simplified:
and that can be simplified down to
The domain of this function will be all real numbers EXCEPT for the one(s) that cause the denominator to become undefined. Set the denominator equal to 0 and solve for x:
5x - 4 = 0 so
5x = 4 and
x = 4/5
In other words, D = {x | x ≠ 4/5}
Yes it is. Input the numbers into the pythagorean theorem,
and if they equal each other it is a right triangle.