The following relation is a function: {(-8, – 9), (-4, 5), (1, 5), (4, 7)}
1 answer:
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Answer: Option A and Option B.
Step-by-step explanation:
You need to remember the logarithms properties:
You can observe in Option A:
(This is true)
You can observe in Option B:
(This is true)
You can observe in Option C:
(This is not true)
You can observe in Option D:
(This is not true)
Given:
The graph of a function .
To find:
The interval where .
Solution:
From the given graph graph it is clear that, the function before x=0 and after x=3.6 lies above the x-axis. So, for
and
.
The function between x=0 and x=3.6 lies below the x-axis. So, for
.
Now,
For , the graph of h(x) is above the x-axis. So,
.
For , the graph of h(x) is below the x-axis. So,
.
For , the graph of h(x) is below the x-axis. So,
.
Only for the interval , we get
.
Therefore, the correct option is A.