If x2 + 12x + n is a perfect square trinomial, then n =?
2 answers:
Answer:
36
Step-by-step explanation:
There is a pattern. Try expanding some binomials to see the pattern.
Compare that last line with the problem.
<em>n</em> is the square of <u>half</u> the coefficient of <em>x</em>. In the two examples given above,
9 is the square of half of 6
25 is the square of half of 10
The square of half of 12 is
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Answer:
The relationship between two variables is decreasing and linear.
Step-by-step explanation:
From the given table it is notice that the function passing through the points (1,5), (2,-1), (3,-7) and (4,-13).
Slope of the function between first two points (1,5) and (2,-1) is
Slope of the function between last two points (3,-7) and (4,-13) is
The rate of change or slope of the function is constant.
From the given table it is noticed that the values of y decreased by 6 units as the values of x increased by 1 units.
Since the rate of change constant and negative, therefore the relationship between two variables is decreasing and linear.