Question

1. If C = {integers divisible by 2 from 1 to 12} and D = {integers divisible by 4 from 1 to 16}, what is C ∩ D?
A{4, 8, 12}
B{2, 4, 6, 8, 10, 12, 16}
C{8, 12}
D{ }

2. The range of the relation below is
x y
−1 10
2 10
5 4
0 3
A {3, 4, 10}
B {−1, 0, 2, 5}
C {10, 10, 4, 3}
D No range exists.

3.Given the function f(x) = 2(x + 6), find x if f(x) = 22.
A 56
B 5
C 38
D 17

Answer 1

1. C ∩ D = all the common elements from C & D...

2. confusing..

3. F(x) = 22 = 2 (x +6)... can u find for x ??

can u give a try ??

Answer 2

my mother ?? can try or not ??

Answer 3

If C = {integers divisible by 2 from 1 to 12} = {2,4,6,8,10,12}
and D = {integers divisible by 4 from 1 to 16} = {4,8,12,16}

what is C ∩ D = all common elements in C & D = {4,8,12}

so option A

Answer 4

3. f(x) = 2(x + 6), f(x) = 22.

so f(x) = 2(x + 6)= 22.

2x +12 = 22
2x = 10
x = 5

option B

Answer 5

for B, i dont find any range.. question is not very clear for me..