The function h(x) is defined as shown. What is the range of h(x)? A) –∞ < f(x) < ∞ B) f(x) ≤ 5 C) f(x) ≥ 5 D) f(x) ≥ 3 h(x
2 answers:
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Option D:
is positive product.
Solution:
<em>If the negative sign is in even number of times then the product is positive.</em>
<em>If the negative sign is in odd number of times then the product is negative.</em>
To find which product is positive:
Option A:
Here, number of negative signs = 3
3 is an odd number.
So, the product is negative.
Option B:
Here, number of negative signs = 3
3 is an odd number.
So, the product is negative.
Option C:
Here, number of negative sign = 1
1 is an odd number.
So, the product is negative.
Option D:
Here, number of negative sign = 2
2 is an odd number.
So, the product is positive.
Hence option D is the correct answer.
is positive product.