MENU
Question -

In each of the Exercises 7 to 12, find the equation of the parabola that satisfies the given conditions:
Vertex (0, 0), passing through (5, 2) and symmetric with respect to y-axis.



Answer -

We know that the vertex is (0, 0) and the parabola is symmetricabout the y-axis.

The equation of the parabola is either of the from x2┬а= 4ay or x2┬а=-4ay.

Given that the parabola passes through point (5, 2), which liesin the first quadrant.

So, the equation of the parabola is of the form x2┬а= 4ay, while point (5, 2) mustsatisfy the equation x2┬а= 4ay.

Then,

52┬а= 4a(2)

25 = 8a

a =┬а25/8

Thus, the equation of the parabola is

x2┬а= 4 (25/8)y

x2┬а= 25y/2

2x2┬а= 25y

тИ┤ Theequation of the parabola is 2x2┬а=25y

Comment(S)

Show all Coment

Leave a Comment

Free - Previous Years Question Papers
Any questions? Ask us!
×