Let R = {(a, b) : a, b ϵ Z and b = 2a – 4}. If (a, –2} ϵ R and (4, b²) ϵ R. Then, write the values of a and b.
b = 2a – 4

Put b = -2 , a = 1

Put a = 4 , b = 4

a = 1 , b = 4

Question

Let R = {(a, b) : a, b ϵ Z and b = 2a – 4}. If (a, –2} ϵ R and (4, b 2 ) ϵ R. Then, write the values of a and b.

Philoid · Accepted Answer

b = 2a – 4

Put b = -2 , a = 1

Put a = 4 , b = 4

a = 1 , b = 4