Question

What is the function that describes the following function table?

X

Y
1

2
2

3
3

4
Question 5 answers

The output value Y is one less than the input value X.

The output value Y is two less than the input value X.

The output value Y is one more than the input value X.

The input value X is twice as much as the output value Y.

Answer 1

It is a table again
so:
x = y
1 = 2
2 = 3
3 = 4

Answer 2

Which of the four choices is true about the inputs x and the outputs y?

Answer 3

It should be C

Answer 4

There you go. You've answered yourself again :P

Answer 5

I know most of the answers but I like feedback :D

Answer 6

Okay.

Answer 7

yeah

Answer 8

let me just put the next question in here ok?

Answer 9

@terenzreignz

Answer 10

Okay.

Answer 11

When Y = 50, what is X in the function,

sqrt{?} 100x - 50 = y?

Answer 12

\[\large \sqrt{100x-50}=y\]
?

Answer 13

\[\sqrt{100}\] x - 50 = y

Answer 14

yeah

Answer 15

Okay, we have a value for y, it's 50...
\[\large \sqrt{100x-50}=50\]
Now solve for x :P

Answer 16

yeah I know but I don't know what X can possibly be

Answer 17

Find out. First, get rid of that annoying square root sign, by squaring both sides.

Answer 18

hmm.. so A?

Answer 19

How should I know? You didn't tell me the choices.

Answer 20

uups true sry

Answer 21

0

10

25.5

100

Answer 22

Solve for x, when you square both sides, you get
\[\huge \left(\sqrt{100x-50}\right)^2=50^2\]

Answer 23

I think it is B

Answer 24

Could you show how you arrived at that answer?

Answer 25

by guessing .____. I am not good at this :/

Answer 26

dang and this is my last questioon :o

Answer 27

Well, remember that the square root and the square (exponent 2) cancel out, so you get
\[\huge 100x-50=2500\]
Now solve for x.

Answer 28

25.5 so C thanks bro :)

Answer 29

Okay, no problem

Answer 30

NOO it was 10

Answer 31

but thanks anyway everything else was right :)

Answer 32

It should be 25.5

Answer 33

no, the answers said 10 but no big deal

Answer 34

Unless I was working on the wrong problem.

Answer 35

did it really look like this
\[\sqrt{100x-50}=y\]

Answer 36

yeah

Answer 37

Well, it should be 25.5.
Now, if it were this
\[\huge \sqrt{100}x-50=y\]
Then it would make sense that the answer is 10

Answer 38

ups yeah I thought there would be no difference my fault lol

Answer 39

Oh well...

Answer 40

yeah anyway thanks a lot :D