Write an inequality that compares the given numbers. - 1; 4
1 answer:
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Answer:
The correct answer is the first one listed.
Step-by-step explanation:
First you have to determine what the equation for that circle is. The standard form of a circle is
where h and k are the coordinates of the center and the radius is squared. Using the given info, our equation will look like this:
Now we use the coordinates given and plug in 2 for x and 3 for y and do the math and see if the 2 sides are equal.
and 9 + 16 = 25, right? So that's how you can check the other coordinate pairs to verify that they DON'T work out!
Answer:
The vertex (h,k) is (-4,-7).
Step-by-step explanation:
I assume you are looking for the vertex .
The vertex form of a quadratic is where the vertex is (h,k) and a tells us if the parabola is open down (if a<0) or up (if a>0). a also tells us if it is stretched or compressed.
Anyways if you compare to
, you should see that
.
So the vertex (h,k) is (-4,-7).