Question

Find the coordinates of the point which lies on y -axis at a distance of 8 units below the origin.


Answer fast must neded

Answer 1

Answer:

$\huge\rm\red{❥Answer}$

Coordinates = (0,-8)

Answer 2

Questions

Set X is the set of all points (x,y) in the coordinate plane such that x and y are both integers with absolute value less than 4. If a point is chosen at random from set X, find the probability that this point will be located at a distance of 2 units or less from the origin.

Answer

X could be −3,−2,−1,0,1,2,3, so there are 7 choices for x. Likewise there are 7 choices of y.

Altogether there are 7×7=49 points that fit those requirement.

Of those only following point are distance of 2 and less (2,0),(1,−1),(1,0),(1,1)(0,2),(0,1),(0,0),(0,−1),(0,−2)(−1,−1),(−1,0),(−1,1) and (−2,0)=13 points.

So probability of points =

49

13

=0.265

Note : The above answer is just an example to how to solve this type of questions and it is not just the exact answer of the question asked. it given so that others can have a idea from this and can solve their questions by themselves.

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