What is the range of the relation? {(1, 2), (2, 4), (3, 2), (4, 6)}

A.
{2, 4, 6}

B.
{1, 2, 3, 4}

C.
{2, 4}

D.
{1, 2, 3, 4, 6}

Question

What is the range of the relation? {(1, 2), (2, 4), (3, 2), (4, 6)}
 
 A.
{2, 4, 6}
 
 B.
{1, 2, 3, 4}
 
 C.
{2, 4}
 
 D.
{1, 2, 3, 4, 6}

anonymous · Answer

the ans-A

anonymous · Answer

thats what i thought, thanks

anonymous · Answer

one more:
For the function f(x) = 2 – 3x, find f(0).
 
 A.
–3
 
 B.
5
 
 C.
2
 
 D.
–1

anonymous · Answer

i think it easy  C

anonymous · Answer

but im wondering how do u get c?

the_fizicx99 · Answer

@mintefikre Refrain from giving out answers.

anonymous · Answer

can anyone tell me how mintefikre got c?

the_fizicx99 · Answer

f(0) means to plug in 0 for x

$\ \sf f(\color{green}{x})$ = 2 - $\ 3\color{green}{x} \longrightarrow 2 -3(\color{green}{0}) = 2 - 0 = 2$ 

Anything times 0 is 0

anonymous · Answer

Oh i didnt know what f(0) meant 
Thanks so much!

the_fizicx99 · Answer

yw