Question

Let A be the set of first ten natural numbers and let R be a relation in A define by (x , y)∈ R if and only if x + 2y = 10. Which of the following is false
a) R = {2, 4}, (4, 3), (6, 2), (8, 1)

(b) Domain of R = {2, 4, 6, 8}

(c) Range of R = {1, 2, 3, 4}
(
d) None of thes

Answer 1

Answer:

your answer has to be d None of these

R = (2,4) (4,3) (6,2) (8,1) ∈ R

Domain is all the values of x in the ordered pair

ie 2, 4, 6 and 8

Range is all the values of y in the orfered pair

ie 4, 3, 2 and 1