Unit 10 - 12 B Test Review

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Mathematics

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9th - 10th Grade

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James Zinn

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4 Slides • 25 Questions

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

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?

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

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)

x² + 63x + 16

x² + 16x + 63

x² + 79

x² + 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

Unit 10 - 12 B Test Review

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