is the function shown in the graph one-to-one?

The correct option is 3.

Step-by-step explanation:

In a one-to-one function every element of the function's codomain is the image of at most one element of its domain.

A function is one-to-one function if it passes vertical line test and horizontal line test. It means each vertical and horizontal line cuts the graph of function at most 1.

The given graph passes the vertical and horizontal line test. It means there exist one output for every input. So the function shown in the graph is one-to-one function.

Therefore, the correct option is 3.

d. 9

step-by-step explanation:

in the table given in the picture, x is the input of the function and f(x) is the output on the given input. in the given table, it can be read as the value of function at -3 is it's respective value of f(x) which is -9.

as we have to find the value of f(3), we will see that what is the value of output on input 3. we can see in the table that the output value at x=3 is 9.

so, option d is the correct answer ..

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer