Question

Which set represents the range of the function shown?

{(−1, 5), (2, 8), (5, 3), (13, −4)}

{−1, 2, 5, 13}
{−4, 3, 5, 8}
{(5, −1), (8, 2), (3, 5), (−4, 13)}
{−4, −1, 2, 3, 5, 5, 8, 13}

Answer 1

Answer is B (-4,3,5,8)

Answer 2

{-4,3,5,8}

Explanation:

when we are given a function of the type (a,b) then all the a values represent the domain and all the b values represent the range of that function so ,

for the given function

{(−1, 5), (2, 8), (5, 3), (13, −4)}

the range will be these bold values

{(−1, 5), (2, 8), (5, 3), (13, −4)}

which can be written in set as

{5,8,3,-4}

since the correct way to write the values is in ascending order so the final answer is

{-4,3,5,8}