Given:
The cost y (in dollars) of renting a segway for x hours is
To find:
The initial fee and the cost per hour.
Solution:
We have,
...(i)
The slope intercept form of a linear equation is
...(ii)
where, m is slope is b is y-intercept or initial value.
From (i) and (ii), we get
The value of m is 30, so the slope is 30. It means cost per hour is $30.
The value of b is 25, so y-intercept is 25. It means the initial fee is $25.
The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.
The given polynomial is
What is the form of perfect square polynomial?
we solve this method by using perfect square method
add and subtract 1/9
factor 36
Now complete the square
Therefore this is not perfect square trinomial.
Similarly for
Complete square is,
This polynomial is also not perfect square trinomial.
complete square is,
This polynomial is not perfect square trinomial.
complete square is,
This polynomial is perfect square trinomial.
Therefore,
The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.
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