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enot [183]
3 years ago
7

I need some help please I’d really appreciate it this is due in 25 mins.

Mathematics
2 answers:
Pani-rosa [81]3 years ago
6 0

Answer:

2 years

Step-by-step explanation:

LekaFEV [45]3 years ago
4 0

Answer:

i dont think that it much easier may be 2years

Step-by-step explanation:

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prohojiy [21]
The sketch of the parabola is attached below

We have the focus (a,b) = (2, -0.5)
The point P(x,y)
The directrix, c at y=-1.5

The steps to find the equation of the parabola are as follows

Step 1
Find the distance between the focus and the point P using Pythagoras. We have two coordinates; (2, -0.5) and (x,y).
We need the vertical and horizontal distances to find the hypotenuse (the diagram is shown in the second diagram).
The distance between the focus and point P is given by
\sqrt{ (x-a)^{2}+ (y-b)^{2} }

Step 2
Find the distance between the point P to the directrix c. It is a vertical distance between y and c, expressed as y-c

Step 3
The equation of parabola is then given as 
\sqrt{ (x-a)^{2}+ (y-b)^{2} }=y-c
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y= \frac{ x^{2} }{2} -2x+1

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