Wouldn't this be true ?
2 answers:
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This is the domain and range for exponential function
Answer:
The true statements:
The only value that is in the domains of both functions is 0.
The range of g(x) is all values less than or equal to 0.
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Step-by-step explanation:
See the attached figure:
As shown: f(x) = √x with blue color
When f(x) is reflected across the x-axis the result will be (-√x) with red color.
Then the is reflected result across the y-axis to create the graph of function g(x) = -√(-x) with green color.
<u>Domain </u>of f(x) = [0,∞) & <u>Range</u> of f(x) = [0,∞)
<u>Domain </u>of g(x) = (-∞,0] & <u>Range </u>of g(x) = (-∞,0]
So, according to previous, we will check the statements:
1) The functions have the same range. <u>(Wrong)</u>
2) The functions have the same domains. <u>(Wrong)</u>
3) The only value that is in the domains of both functions is 0. <u>(True)</u>
4) There are no values that are in the ranges of both functions. <u>(Wrong)</u>
5) The domain of g(x) is all values greater than or equal to 0. <u>(Wrong)</u>
6) The range of g(x) is all values less than or equal to 0. <u>(True)</u>
Answer: In 2005 the amount spend on internet ads = $74.6 billions.
In 2009 spending on internet search ads will reach $102 billion .
Step-by-step explanation:
Given : The number of internet paid search ads is increasing as advertisers move away from traditional marketing methods.
The equation can be used to project spending on internet search ads, in billions of dollars, x years after 2000.
To estimate spending on internet ads in 2005.
We need to put x= 5 in the above equation [∵2005-2000=5]
i.e. In 2005 the amount spend on internet ads = $74.6 billions.
Put y= 102 in the given equation, we get
[Subtract 40.1 from both sides]
And 2000+9=2009 [x is the number of years after 2000]
Hence, in 2009 spending on internet search ads will reach $102 billion .