The answer should be the directrix because k represents the y-value of the vertex, and for this questions the parabola is probably facing upward, so the directrix is under the vertex.
Answer:
The answer is
<h2>( 5 , - 3)</h2>
Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula
<h3>

</h3>
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
(3, -1) and (7, -5)
The midpoint is

We have the final answer as
<h3>( 5 , - 3)</h3>
Hope this helps you
Answer: 10 for each side but in total is 20
Step-by-step explanation: u multiply 5 x 4 = 20 divided by 2 to get 10 meters and another is 4 divided by 2 is 2 x 5 is 10 meters times 2 is 20 total
<em>Formula:</em>

<em>Plug in the values:</em>

<em>Simplify LHS:</em>

<em>Multiply by 1936 on both sides:</em>

<em>Simplify RHS:</em>

<em>Square root both sides:</em>
Answer: The radius is 4 units. (Answer B)