EOM 1 Review

Adding & Subtracting Polynomials

100

Two answers

w + w + w + w

w * w * w * w

 4w

w⁴

200

2x + 2x + 2x + 2x

8x

300

Simplify. 9x(3 - 7x) 

63x²-27x 

400

(2x)(2x) + (2x)(2x)

8x²

500

(2x)² * (2x)²

16x⁴

First Law of Exponents

100

Rewrite using the first law

23^a * 23^b

23^a+b

200

x² * x² * x²

x⁶

300

( 3x⁴/3y)(-2x³/4y)

(-6x⁷/12y²)

Domain & Range

100

What is the domain of the function? What is the range?

{(1,2), (3,4), (4, 5), (8,5), (9,0)}

Domain: {1,3,4,8,9}

Range: {2,4,5,0}

Evaluating Functions

100

f(x) = 2x

Find f(5)

f(5)= 2(5)

f(5) = 10

200

{(-3,  -4),    (-1,  2),    (0,  0),    (-3,  5),    (2, 4)}

Is this a function? Why/ Why not?

Yes. Because each input (x-value) has only one output (y-value)

300

f(x) = -4x -7 

Find f(3) and f(-7)

f(3)= -4(3) - 7

f(3) = -12 - 7

f(3) = -19

f(-7) = -4(-7) -7

f(-7) = 28- 7

f(-7) = 21