Answer:
Now the square of x is x^2 and the square of x+ 28 is (x+28)^2.
The sum of the squares is x^2 + (x+ 28)^2.
x^2 + (x+ 28)^2
= x^2 + x^2 + 28^2 + 56x
= 2x^2 + 28^2 + 56x
Now let f(x) = 2x^2 + 28^2 + 56x
Step-by-step explanation:
Given:
The different relations in the options.
To find:
The relation which represents a function.
Solution:
A relation is called a function if there exist a unique output (y-value) for each input (x-value).
In option A, there exist two outputs y=7 and y=1 for a single input x=-1. So, this is not a function.
In option B, there exist two outputs y=-5 and y=2 for a single input x=-1. So, this is not a function.
In option C, there exist two outputs y=2 and y=4 for a single input x=3. So, this is not a function.
In option D, there exist only one value of y for each x. So, this is a function.
Therefore, the correct option is D.
I know one answer would be negative association or negative correlation. But I’m not sure on the other answers. Hope this helps!
It is A. 47
A sum of a triangle is 180 degrees, add up 47 and 86 you will get 133. 180 subtract 133 gives you 47
