Write an equation for the set of all points in the plane equidistant from (0, – 1) and y= – 5. Write your answer in vertex form. Simplify any fractions
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Expert's answer
2020-04-27T17:40:45-0400
Let a point P = (x,y) .
Given,
A = (0, -1) and
Equation of a line is y+5=0
PA = (x2−x1)2+(y2−y1)2=(0−x)2+(−1−y)2
PA = x2+y2+2y+1
Perpendicular Distance from the point (x,y) to the Line L: y+5=0
PL = ∣0+1x(0)+y(1)+5∣=∣y+5∣
Given, PA = PL
PA2=PL2
x2+y2+2y+1=(y+5)2
x2+y2+2y+1=y2+10y+25
x2=8y+24
x2=8(y+3)
The equation of set of points in vertex form is, x2=8(y+3)
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