Question

Find the domain and the range of the relation.

{(7, 3), (-7, 0), (-3, -3), (14, -7)}
Choose one answer.
a. domain: {-7, -3, 7, 14} ; range: {-7, -3, 0, 3}
b. domain: {-3, 0, 7, 14} ; range: {-7, -3, 3, 14}
c. domain: {-7, -3, 7, 14} ; range: {0, 3}
d. domain: {-7, 0, 3, 7} ; range: {-7, -3, 14}

Answer 1

stack up the points to see the D,R

Answer 2

D R
(7 , 3 ),
(-7, 0 ),
(-3, -3),
(14, -7)

Answer 3

since there is no 0 on the D side; scratch off b and d

Answer 4

since the R is bigger than 2 elements scratch out c

Answer 5

domain is the first element of each pair, range is the second element of each pair
Domain 7,-7,-3,14
domain -7,-3,7,14
range 3,0,-3,-7
range -7,-3,0,3

Answer 6

option A