A pair of intersecting planes and where they intersect
1 answer:
Answer:
Two planes always would intersect at a line, as shown in attached figure below.
Step-by-step explanation:
As we know that
A plane has basically 2 dimensions.
- length and
- width
But as the plane is infinitely large, we can say that length and width of a plane is not supposed to be measured. (can not be measured)
Let suppose we have a pair of intersecting planes.
If If two intersecting planes are not parallel, then they would intersect each other somewhere.
BUT
Two planes always would intersect at a line, as shown in attached figure below.
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Answer:
The equation represents the equation of the parabola with focus (-3, 3) and directrix y = 7.
Step-by-step explanation:
To find the equation of the parabola with focus (-3, 3) and directrix y = 7. We start by assuming a general point on the parabola (x, y).
Using the distance formula , we find that the distance between (x, y) is
and the distance between (x, y) and the directrix y = 7 is
.
On the parabola, these distances are equal so, we solve for y: