Unit 2 Review!

Rigid Transformations

100

Rotate 180 degrees about the origin.

E(2, -2), J(1, 2), R(3, 3), S(5, 2)

What is the coordinate of R'?

R'(-3, -3)

200

Translation: 7 units right and 1 unit do.

J(−3, 1), F(−2, 3), N(−2, 0)

What is the coordinate of N'?

N'(5, −1)

300

Reflection across y =2.

J(1, 3), U(0, 5), R(1, 5), C(3, 2)

What is the coordinate of U'?

U'(0, −1)

400

translation: 6 units right and 3 units down.

S(−3, 3), C(−1, 4), W(−2, −1)

What is the coordinate of C'?

C'(5, 1)

500

What is another way to describe a reflection?

Flip or mirror image

Area Model or Distributive Property

100

x(2x+7) = ?

2x² + 7x

200

(x+2)(2x-3)

2x²+x-6

300

12(2x+30)

24x+360

400

The width of a pool is x feet. The area is 2x+113x² square feet. What is the length in feet? Draw an area model rectangle to find the answer. 

The length is 2+113x feet long.

500

(x+3)(x²+x-3y)= ? 

x³ +4x² +3x- 3xy -9y

Area Model: Binomials

100

(x+1)(x+5) =

x² + 6x + 5

200

(2x+10)(x+3x) = ?

8x² + 40x

300

(11-7x)(2x+1)= ?

-14x² +15x +11

400

(3x-4)(3+x) = ? 

3x² + 5x - 12

500

(x+f)(x-w)= ?

x² -xw +fx -fw

Algebra

100

Solve for x.

5x = 35

x = 7

200

Solve for x.

13x + 1 = 53

x = 4

300

Solve for x. 

24x = 280 - 4x

x = 10

400

James tried to solve for x in the equation 36 - 3x = 15x and got x=3. 

Is that the correct answer? Explain.

No, it is incorrect. x=2

500

Solve for w.

3w+16-w = 4w + 8

w=4

Ratios, Decimals, Fractions

100

3 out of every 4 students in class voted for Jacqueline. What percentage of votes did she get?

75%

200

Write 30% as a ratio.

30:100 or 3:10

300

Convert 0.95 to a fraction. Simplify the fraction.

95/100 = 19/20

400

What is 2/4 as a decimal?

.5

500

What is the rebound ratio of a basketball that is dropped from 200cm and rebounds at 150cm?

.75