What slope of this line x 9 13 17 21 y -24 -21 -18 -15
1 answer:
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The value of xy is 114 which is a real number.
real numbers are all numbers/points that exist at the variety line.real numbers may be divided into the following divisions:Rational numbers; any range which may be written within the form ofin which p and q are co-prime integer numbers , are called rational numbers. Irrational numbers ; all numbers which cannot be written as a simple fraction is referred to as irrational numbers.Given two real numbers x and y . Let us consider .
According to the question their sum is 25.
.............(i)
The difference of the numbers is 13.
...........(ii)
Now we have to solve the simultaneous equation:
adding equations (i) and (ii) we get:
Substituting the value x=19 into equation (i) we get:
Now let us find the product xy
The product xy is 114 which is also a real number.
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