405,816 views
19 votes
19 votes
Select all inputs for which f (x)=2A:x=-7B:x=0C:x=4D:none of the above

Select all inputs for which f (x)=2A:x=-7B:x=0C:x=4D:none of the above-example-1
User Vic Zhou
by
3.1k points

1 Answer

19 votes
19 votes

To answer this question, we need to see the graph of the function carefully.

For x = -7, we can see that the function is equal to 2, that is:


f(-7)=2

For x = 0, we have that the function is equal to -1, that is:


f(0)=-1

For x = 4, we have that the function is equal to -2, that is:


f(4)=-2

We need to find the value of x. Then, we have to find the point where we "touch" the function, and then find the y-value of the function.

Therefore, in summary, we have that the only input for which f(x) = 2 is when x = -7 (option A).

User Andrej
by
3.2k points