Question

Which set represents the range of the function shown?

{(8, 2), (6, 5), (4, 7), (11, −2)}

{−2, 2, 5, 7}
{4, 6, 8, 11}
{(2, 8), (5, 6), (7, 4), (−2, 11)}
{−2, 2, 4, 5, 6, 7, 8, 11}

Answer 1

Your answer would be A!

Explanation:

{−2, 2, 5, 7}

Answer 2

Hence, option A is correct.

i.e. the range is {-2,2,5,7}

Explanation:

" The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain "

We are given a information about the function f(x) as:

{(8, 2), (6, 5), (4, 7), (11, −2)}

Where these ordered pair represent the function f(x).

i.e. the set is (x,f(x)).

Now clearly based on the given information we could see that the range of the function f(x) is:

{2,5,7,-2}