Question

does anyone know how to do a inout and output table with a rule

Answer 1

Input and outputs as in functions?

Answer 2

yea

Answer 3

Do you have any specific problem?

Answer 4

yea the top starts from -2 and goes to 2 and the bottom is blank

Answer 5

And the function/rule is?

Answer 6

y=-20x

Answer 7

Perfect. now insert the values in place of "x" one by one.

Let's say -2, -1, 0, 1, 2.

Answer 8

what do you mean??

Answer 9

y = -20x is the function, right?

insert the values one by one.

y = -20(-2)
y = output

Then -1
y = -20(-1)
y = output

And so on..

Answer 10

i dont get this

Answer 11

Why? Which part?

Answer 12

how would you insert values?

Answer 13

Replace "x" with a value is inserting the value.

Answer 14

so how would i use that in a function table

Answer 15

Those will give you certain values of "y". The values of "y" are the outputs.

Answer 16

A function is usually written like f(x)=rule.
So for you equation y=-20x, you can see this as a function by changing it to f(x)=-20x where x in an input value into the function.
If you want to find the value of that function at -2, you would write f(-2)=-20(-2)=40.

Now you have a point at x=-2 and y=40. So you put that in your table.
Then you go and do each other value of x from your input column.

Answer 17

ok? y makes more sense ok so the what would be after that

Answer 18

Insert the resulted value in the table. Simple as that.

Answer 19

The resulting value from your function y=-20x is an output.
'y' IS an output.
'x' IS an input.

Take your input 'x' from your table and put it into your function... calculate the function to get your 'y' output.