Question

$A=\{a,b,c\}$ and $B=\{5,7,9\}$. The relation from $B$ to $A$ is

• A. $\left\{\right(a,5),(a,7),(b,7),(c,9\left)\right\}$
• B. $\left\{\right(5,7),(9,9),(7,5\left)\right\}$
• C. $\left\{\right(5,a),(5,b),(5,c\left)\right\}$
• D. $\left\{\right(5,b),(7,c),(7,a),(9,b\left)\right\}$

Answer 1

Answer: (C), (D)

The correct options are
C $\left\{\right(5,a),(5,b),(5,c\left)\right\}$
D $\left\{\right(5,b),(7,c),(7,a),(9,b\left)\right\}$

$A=\{a,b,c\}$

$B=\{5,7,9\}$

$R:B⟶A$

$R=\left\{\right(5,a),(5,b),(5,c),(7,a),(7,b),(7,c),(9,a),(9,b),(9,c\left)\right\}$

Option C and D contain relations in R.