mp4 exam review

standard form

100

1x+3x²-2

3x²+1x-2

200

2x+4x³-8x

4x³-6x

300

9x-2x²+3x³

3x³-2x²+9x

400

X³-2x-7x³+x²

-6x³+x²-2x

add/sub. Polynomials

100

2x-2x²+4x

6x-2x²

200

8x²-4x-1x+6

-5x+8x²⁺⁶

300

6x-7x³+3x-1

9x-7x³-1

400

10-1x+6x²+2x

10-1x+6x²

Multiply polynomials

100

What does FOIL stand for?

F-first

O-outer/outside

I-inner/inside

L-last

200

(4+2x)(3x²-5x)

2x²-20x+6x³

300

(2x²-3x)(8+10x)

-14x²+20x³+24x

400

(1x-2)(3x+6x²)

-9x²+6x³-6x

determine the correlation

100

Time spent studying, test scores

Positive

200

How nice you are, how much people respect you.

Positive

300

How hot it is outside, your need for a heater.

Netative

400

How much it rains, how hungry you are

No correlation

write equation given 2 points

100

(2,1)(4,7)

Y=3x-5

200

(0,0)(5,10)

Y=2x+2

300

(3,-4)(-1,0)

Y=-1x+1

400

(9,2)(10,7)

Y=5x-43