Question

Use the algebra tiles to model x + 2.

Which statements are true? Select all that apply.
The expression cannot be modeled.
The variable is modeled by an orange x tile.
The variable is modeled by an orange + tile.
+ 2 is modeled by 2 orange x tiles.
+ 2 is modeled by 2 orange + tiles.

Answer 1

help plz

Answer 2

help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answer 3

Which tiles have "x" as a label? Would that be the small squares, or the long rectangles?

Answer 4

long?

Answer 5

yes

Answer 6

we want to model x+2

will we involve the tile labeled "x" or will we use the one labeled "-x" ?

Answer 7

x

Answer 8

yes, so you'll use one orange tile labeled "x"

Answer 9

how can we model the "+2" ?

Answer 10

i dont get it tho

Answer 11

So let's say we had three of those blue squares
Each is labeled with a minus sign which means -1-1-1 = -3

So we can model "-3" with three blue squares

This is an example and not the answer

Answer 12

Another example:
Say we wanted to model "5"

We would pick 5 of the orange squares that each have a plus sign
So 1+1+1+1+1 = 5

Answer 13

Based on those examples, how can we model "2" ?

Answer 14

i

Answer 15

I really don't understand

Answer 16

Do you agree we can rule out the long rectangles?

Answer 17

i really dont

Answer 18

nu

Answer 19

I'll give a similar example

So if we had something like 3x+5 then it is modeled like so

Answer 20

We have three long rectangles with "x" on each, so that takes care of the 3x part
The 5 smaller squares with a plus sign on them takes care of the +5 at the end
This is because 1+1+1+1+1 = 5, so each square could have a "+1" on them or just "1"

Answer 21

Sorry I meant to do five small squares, not 6

Answer 22

Hopefully that example makes sense. If not, I can do another example.

Answer 23

ok ok

Answer 24

:(

Answer 25

I'll do another example

So here's what x+4 looks like
We have 1 long rectangle (for the x term)
We have 4 smaller squares with a plus sign on them to represent the "+4" ( since 1+1+1+1 = 4)