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whats the question ?

Make a mapping diagram for the relation. {(-2,-6), (0,3), (1,-5), (5,0)}

ok,
so
the arrow that starts from -2 should go to -6

similarly, the arrow starting from 0 goes to 3
and same for others
which option has that property ?

C? And could you help me with another one? And i LOVE YOUR PROFILE PICTURE!

C is correct :)
sure
yes, I love it too :D

cool! :)

Okay, that's the one. Sorry for the multiple pictures.

which one do you think?

I was thinking D, but I think I'm wrong.

So, it's not D?

nope, try C

So, C would be correct?

yes :)

Omg thank you(:

Can you help me with one more? I think I have the answer, but I keep getting confused.

sure
ask :)

Okay, I'll post it here. c:

The one I clicked is the one that I think is right

where would be (3/2, 0) on the graph??
on x axis or on y axis?

ok,
domain is just the set of all x values
range is the set of y values

and 3/2, 0 will lie in x axis at 3/2 distance from Origin
so what you clicked isn't correct

My other assumption was that A is the answer.

yes, its A :)

you're most welcome ^_^
Enjoy the awesome show ;)

sure

for direct variation
the ratio of y to x is constant

when y = 72, x =18
so y/x = 72/18 = 4

do that for ther set of values and see if you get the ratio as 4 or not

I'm confused.

24/6 = 4 or not?
216/54 = 4 or not??
648/162 = 4 or not ??

They are all true.

Which means the answer is no?

then its a direct varion with k=4 and y = kx :)

So, it would be A?

yes

Yay! Would you be able to help me with a couple more?

I can try :)

Thank you very much(:

y = kx
y = 2.52, x =8.4
so k = 2.52/8.4 = ... ?

0.3?

But, that's not one of the choices though

because thats the value of k :)
y = kx = 2.7*0.3 = ... ?
the answer to that will be in the choices

0.81 (:

yusss

I have two more questions, can you still help? (:

yes

1 1/3 = 1+1/3 = 4/3

so it would be w = 4/3 t

So it can't be A or C?

and if you multiply that by 5
we get 20/3 which is just 6 2/3

its B :)

Yay! Can you help me with one more?

sure

That's the question

y = 5/2 x
so when x =2, y will be 5
which line passes through origin and the point 2,5 ??

D?

nope
locate 2,5 on the graph

Oh wait, it kinda looks like it is B.

Omg wait, is it C?

|dw:1443209456658:dw|
yes its C :)

its too good! :)
Congrats

Thank you(:

welcome ^_^

go on

are these test questions?

No, they're for like quick check/practice things ;-;

can you ask them in a separate post from now? sorry, I have to be somewhere right noe...

It's okay, thank you for your help.