SOLUTION: Find the end points of the minor and major axis for the graph of the ellipse {(x-4)^2/9} + {(y-3)^2/25} = 1 a. Maximum point on the major axis: b. Minimum point on the major

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: Find the end points of the minor and major axis for the graph of the ellipse {(x-4)^2/9} + {(y-3)^2/25} = 1 a. Maximum point on the major axis: b. Minimum point on the major      Log On


   



Question 1204150: Find the end points of the minor and major axis for the graph of the ellipse
{(x-4)^2/9} + {(y-3)^2/25} = 1
a. Maximum point on the major axis:
b. Minimum point on the major axis:
c. Maximum point on the minor axis:
d. Minimum point on the minor axis:
e. Maximum focal point:
f. Minimum focal point:

Found 2 solutions by ikleyn, MathLover1:
Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.

The center is at the point (x,y) = (4,3).


Major semi-axis is of the length  of  sqrt%2825%29 = 5  from the center vertically.


Minor semi-axis is of the length  of  sqrt%289%29 = 3  from the center horizontally.


So, you just can answer (a), (b), (c), and (d) on your own.


Focal points are at the distance  sqrt%2825-9%29 = sqrt%2816%29 = 4 from the center vertically, up and down.


Having it, you can answer (e) and (f) on your own.

Solved.

My congrats (!)

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Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
The standard form you need is:
%28x-h%29%5E2%2Fb%5E2%2B%28y-k%29%5E2%2Fa%5E2=1
where:
a%3Eb
2a= the length of the major axis (vertical)
2b= the length of the minor axis (horizontal)
(h,k) = center of ellipse
you are given:
%28x-4%29%5E2%2F9+%2B+%28y-3%29%5E2%2F25
Therefore:
h=4 , k=3
b%5E2+=+9, a%5E2=25
b+=+3,+a+=+5
C(h,k) = (4,3)

The coordinates of the endpoints of the major axis are: (4,3±5) or (4,8), (4,-2)
a. Maximum point on the major axis:(4,8)
b. Minimum point on the major axis:(4,-2)


The coordinates of the endpoints of the minor axis are: (4±3,3) or (7,3), (1,3)
c. Maximum point on the minor axis: (7,3)
d. Minimum point on the minor axis: (1,3)
e. Maximum focal point:
f. Minimum focal point:
Focal points are at the distance sqrt%2825-9%29=+sqrt%2816%29=+4 from the center vertically, up and down
so, foci are
(4,3%2B4)= (4,7) above center
and
(4,3-4)= (4,-1) below center
e. Maximum focal point: (4,7)
f. Minimum focal point: (4,-1)