First, let
be a point in our parabola. Since we know that the focus of our parabola is the point (0,8), we are going to use the distance formula to find the distance between the two points:
Next, we are going to find the distance between the directrix and the point in our parabola. Remember that the distance between a point (x,y) of a parabola and its directrix,
, is:
. Since our directrix is y=-8, the distance to our point will be:
Now, we are going to equate those two distances, and square them to get rid of the square root and the absolute value:
Finally, we can expand and solve for
:
We can conclude that t<span>he standard form of the equation of the parabola with a focus at (0, 8) and a directrix at y = -8 is </span>
Answer:
m= 34
Step-by-step explanation: remember a2 plus b2 = c2
Answer: +200 calories/day
Step-by-step explanation:
For 15 Hours Of Work, You Will Be Paid $157.50. Just Multiply 10.50 By 15 And You Got Your Answer.
Answer:
15 feet
Step-by-step explanation:
Perimeter = All outside lengths added together
We know that the shape is a square, and squares have 4 sides.
So, divide 60 by 4.
60 / 4 = 15.
The length of one side is 15 feet.