Unit 10 - 12 B Test Review

Unit 10 - 12 B Test Review

​Unit 10 - Lines of Best Fit

• ​Scatter Plots

• ​Lines of Best Fit

  • ​trend lines

• ​Approximating using lines of best fit

  ​Equations of lines of best fit

Multiple Choice

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 
• As the temperature increases, the number of visitors increases. 
• As the visitors increase, the temperature decreases. 
• No correlation

Multiple Choice

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Multiple Choice

• positive trend
• negative trend
• no trend

Multiple Choice

• positive trend
• negative trend
• no trend

Multiple Choice

Which of the following lines represents the line of best fit for the scatter plot?

• A
• B
• C
• D

Multiple Choice

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y= 10

Multiple Choice

What is the equation of the line of best fit?

• y= 2x

• y=3x+7

• y= $$\frac{1}{2}x\ +3$$

• y= $$-\frac{1}{2}x\ -3$$

​Unit 11 - Factoring

• ​Distributive Property

• ​Factoring Out a GCF

• ​Multiplying Binomials

  ​Factoring Using a Difference of Square

• ​Factoring Trinomials

  • ​diamond problems

Multiple Choice

3(2c - 5)

• 6c - 15
• 6c + 15
• 6c + 15
• -6c - 15

Multiple Choice

7a(3b - 2c + 4)

• 10ab + 5ac + 11a
• 10ab + 5ac + 28a
• 21ab + 14ac + 28a
• 21ab - 14ac + 28a

Multiple Choice

Factor:
10x + 15

• 100x + 150
• 10(x + 5)
• 1(10x + 15)
• 5(2x + 3)

Multiple Choice

Factor by using GCF:
8n³ + 2n²

• 2n²(4n-1)
• 2n²(4n + 1)
• n²(8n+2)
• 3n(4n+1)

Multiple Choice

(x +2)(x + 3)

• x² + 5x + 6
• x² + x + 6
• x² + 5x + 5
• x² + 6x + 6

Multiple Choice

(x + 7)(x + 9)

• x^2 + 63x + 16
• x^2 + 16x + 63
• x^2 + 79
• x^2 + 16x + 2

Multiple Choice

Simplify:
(x - 7)(x + 7)

• x² + 7x - 49
• x² - 7x + 49
• x² - 49
• x² + 49

Multiple Choice

x² - 9

• (x + 3) (x - 3)
• (x - 3) (x - 3)
• (x + 3) (x - 6)
• Can't factor using Diff. of Squares

Multiple Choice

4a² - 25

• (2a + 5) (2a - 5)
• (2a - 5) (2a - 5)
• (x + 5) (x - 5)
• Can't factor using Diff. of Squares

Multiple Choice

Factor:
x² + 7x - 30

• (x + 10)(x - 7)
• (x - 10)(x + 3)
• (x + 10)(x + 3)
• (x + 10)(x - 3)

Multiple Choice

Factor
n² + 5n - 6

• (n - 2)(n - 3)
• (n - 1)(n + 6)
• (n + 1)(n - 6)
• (n + 2)(n - 3)

Multiple Choice

Factor
x² - 5x - 36

• (x - 4)(x + 9)
• (x - 6)(x + 6)
• (x + 4)(x - 9)
• (x -12)(x + 3)

Multiple Choice

Factor Completely:  3n² - 15n + 18

• (n - 2)(n - 3)
• 3(n + 2)(n + 3)
• (3n - 9)(n - 2)
• 3(n - 3)(n - 2)

​Unit 12 - Rational Expressions

• ​Multiplying Rational Expressions

  • ​cross reduce

• ​Dividing Rational Expressions

  • ​flip second fraction and make into a multiplication problem

• Adding and Subtracting Rational Expressions

  • ​common denominator

Multiple Choice

• 28p⁷ / 54p

• 11p¹² / 54p

• 14p¹¹ / 27

• 14p⁶ / 27

Multiple Choice

• 10 / 14a⁴

• 21 / 49a⁴

• 3 / a⁴

• 3 / 7a⁴

Multiple Choice

$$\frac{\left(x+9\right)\left(x+8\right)}{8}\cdot\frac{\left(x-1\right)}{\left(x+8\right)\left(x-1\right)}$$  

• $$\frac{\left(x+9\right)}{8}$$   

• $$\frac{\left(x-1\right)}{8}$$  

• $$\frac{1}{8}$$  

•   $$\frac{\left(x+9\right)\left(x+8\right)}{8}$$  

Multiple Choice

$$\frac{x^2-x-6}{x-3}\cdot\frac{x+9}{x+2}$$  

• $$x+9$$  

• $$\frac{x-3}{x-2}$$  

• $$\frac{x+9}{x+2}$$  

• $$x-3$$  

Multiple Choice

Divide

• 1/6

• x+10/ 6x+60

• x+8/ 6x+60

• (x+10)(x+8)/ 6x+60