Question

Which polynomial does the model represent?

A. -x^3 + 2x^2 - 3x + 2
B. x^2 + x - 2
C. -x^2 - x + 2
D. -x^2 + x - 2

Answer 1

@Mehek14 @Nnesha @sweetburger @SerenityJustice74

Answer 2

@Aveline

Answer 3

@sammixboo @ILovePuppiesLol

Answer 4

I'm sorry...I have no idea what those boxes are supposed to represent.

Answer 5

ok

Answer 6

Are these base blocks?

Answer 7

i think so

Answer 8

are black blocks positive or negative?

Answer 9

i think black is negative

Answer 10

I think so too...

I think that the small blocks represent units (or numbers without x), the long blocks represent the x's and the large block represents the x^2.

Answer 11

ok..

Answer 12

If you combine the 3 positive units with the 1 negative unit, you get 2 positive units (since the negative unit "cancels out" one of the positive units)

Answer 13

oh, so would it be B?
B looks positive

Answer 14

remember the small blocks would be the constants of the polynomial.

Answer 15

B has a positive x^2 term and a positive x term, but negative constant term.

Polynomials can be both positive and negative - it depends on what values are used for the variable.

Answer 16

oh then its probably A. the A looks more like the blocks

Answer 17

A has an x^3 term. I thinks we would need a bigger block than those shown. You're down to C or D. Which one is it, and why?

Answer 18

Note, if the x^2 term is represented by the biggest block, and the dark blocks represent negative, then the largest block would represent -x^2

Answer 19

i think its D , the difference between C and D are the subtraction and addition sighns,

Answer 20

The signs are tricky... Here's what I'm getting at: