Question

MEDAL AND FAN!

1-Which of the following statements are true about the function y = 3x?

The function is a direct variation.
The function goes through the origin.
The constant of variation is .
y is 6, when x is 2.

I and II
I and IV
I, II, III, and IV
I, II, and IV

2-Select all of the ratios that are equivalent to 1:5.
6:30
5 to 20
8 to 40
2/9
2/10
3/20

Answer 1

@ganeshie8 @.Sam. @ParthKohli @yrelhan4 @mathslover @Hunus @WhoaBaby14 help??

Answer 2

can you draw y = 3x?

Answer 3

??

Answer 4

please i'm lost just explain me?

Answer 5

i dont want just the answer I want to learn how to do it!

Answer 6

lets start with a table

x y=3x
-2
-1
0
1
2
3

Answer 7

...

Answer 8

if x=-2 what is 3x = ?

Answer 9

-8

Answer 10

try again?

Answer 11

ok...just a sec...

Answer 12

-6 or -8??

Answer 13

\[y(x)=3x\\y(-2)=(-2)\times3=-2-2-2\]

Answer 14

= -6

Answer 15

good

now what is
\[y(-1)=(-1)\times3=\]

Answer 16

-1 -1 -1 =-3

Answer 17

right

Answer 18

so our table looks like

\[\begin{array}{c|c}x & y(x)=3x\\ \hline
-2&-6\\
-1&-3\\
0\\
1\\
2\\
3\end{array}\]

can you fill in the rest of the table?

Answer 19

yes...I just need to use the same expression to all of them right??

Answer 20

yes

Answer 21

Thanks!

Answer 22

just made it!

Answer 23

now you have the table, plot onto the graph, these are the first two points