Ruben bought 6 new books for his collection. This increase his collection by 12%. How many books did he have before his purchase
1 answer:
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Answer:
<h2>X greater-than 0</h2>Step-by-step explanation:
The given function is
Which is a logarithm function. An important characteristic of logarithms is that their domain cannot be negatice, because the logarithm of a negative number is undefined, the same happens for x=0.
Therefore, the domain of this function is all real numbers more than zero.
The image attached shows the graph of this function, there you can notice its domain restriction.
So, the right answer is the first choice: x greater than 0.
Answer:
a.
b.
Step-by-step explanation:
Given
The data in the table
Solving (a): The coordinate that represents the unit rate
The unit rate is when its 1 pound
This is so because the unit rate is dollars per pounds.
<em>Hence, the coordinate is </em><em></em>
Solving (b): Equation of the graph
First, we calculate the slope (m)
Where:
The equation is then calculated as thus:
This gives:
Make y the subject
<em>Hence, the equation of the graph is: </em><em></em>