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Darina [25.2K]
3 years ago
12

What function is graphed below?

Mathematics
2 answers:
Ad libitum [116K]3 years ago
4 0

Answer:

The function that is graphed is:

                     f(x)=\log x+3

Step-by-step explanation:

We could clearly observe from the graph that:

when x=1 we have the value of the function as: f(1)=3

This means that from the given options we will check which option satisfies this property.

1)

f(x)=\log (x-3)

when x=1 we have:

f(1)=\log 1-3)\\\\f(1)=\log (-2)

As we know that the logarithmic function is not defined for the negative value.

Hence, this option is incorrect.

2)

f(x)=\log (x+3)

when x=1 we have:

f(2)=\log (1+3)\\\\f(2)=\log (4)=0.6040

Hence, this option is incorrect.

4)

f(x)=\log x-3

when x=1 we have:

f(1)=\log 1-3\\\\f(1)=0-3\\\\f(1)=-3

Hence, this option is incorrect.

3)

f(x)=\log x+3

When we plot this function we get the same graph as shown.

Also f(1)=3

            Hence, this option is correct.

erik [133]3 years ago
3 0
Because the graph is shifted up three units from the original mother function (f(x) = log x), and therefore, the answer is f(x) = log x + 3. 
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