Franklin, MA - schools - Horace Mann Middle School Middle School

FHS \| Horace Mann \| Remington \| Annie Sullivan \| Davis Thayer \| Kennedy \| Keller \| Jefferson \| Oak \| Parmenter \| Brick \| ECDC \| Lifelong	\| Public \| All Schools
QuickSite

Horace Mann Middle School > Grade 8 > Ms. Ridley

Algebra Final

Welcome

Algebra Exit Test Review

1. straight line with a negative slope going through (-2, 14). (-1, 10), (0, 6) (1, 2) (2, -2)
2. y = 2/3x + 2
3. a. slope is 3 b. the y-intercept is 4
4. a. slope is –2/5 b. y-intecept is 9/5
5. 0
6. undefined
7. y = -2x (example)…any equation that has –2x as the slope
8. c
9. a. y = 2x – 8 b. y-intercept is –8 c. x-intercept is 4 d. (6, 4) would be an example. Any value when x is greater than 4 is in the 1st quadrant.
10. T = $.50 + $.25(c – 1)

Solve:
1. R = (S + 9)/2
2. (–7 +/- square root of 57) / 2
3. x = 13/3
4. if you read this as –2x + 4 < 8 than x > -2; if you read this as –2x + 4 >8 than x < -2

Solving Systems of Equations:
1. x = 3 and y = 0

Absolute Value
1. |x + 3| > 7 would be 4< x < -10 . On a number line, it would be a straight line going between -10 and 4 with open circles on either end.

Polynomials:
1. x2 – x –30
2. –a2b – 2b – 6
3. 4x –3yz

Factoring:
1. (x + 7) (x – 7)
2. (x – 5) (x – 2)

Misc:
1. No, this is not true. For example, if x = -3 and y = 4 , |-3 + 4| is not equal to |-3| + |4|

Functions:
1a. No, it is not a function because for every x, there is not one and only one value of y. For example, when x = 5, y is either –2 or –3.
1b. domain is {2, 5, 9, -4}
1c. range is {4, -2, -3, 5}

Exponents:
1. –6x7
2. 32a20
3. 7

Exponential Relationships:
1. B = 400 (1.1) 7
2. B = 1000 (3)10

Algebra Final Exam Study Guide Answer Key
Evaluate Expressions:
1. 11
2. 42

Identify roles of variables:
1. slope is –3
2. y intercept is 2
3. decay factor 0.4
4. initial value is 5
5. parabola has a vertex of (.3, -6.55), it opens downward and the axis of symmetry is x = .3

Calculate the slope of a line:
1. y = 11x – 15
2. y = 11x (example)….any equation that has 11 as the slope

Identify lines:
1. a line with slope of zero is in the format of y = . An example, y = 2
2. a line with an undefined slope is in the format of x = . An example, x = 2

Solve Equations
1. n = 9 2. p = 3 3. w = 4
4. m = -26 5. n = 20

Simplify Expressions:
1. 6a3b7
2. m2
3. –4a2 – 3a + 18
4. –2c2 – 6

Simplify Radical Expressions:
1. square roots: 8 ¾ -10
2. est square roots: between 3 and 4 between 10 and 11 between 8 and 9
3. leave in radical: 2√15 not true (example √7 + √9 = √16 5√3

Solve Systems:
1. x = 15 and y = -10

Solve and Graph Inequalities:
1. x ≤ -4 graph on a number line is a closed circle over –4; the arrow is extending to the left.
2. –22< x < 8 graph on a number line is open circles over 8 and –22 connected by a line.

Stem and Leaf:
1. mean is 60.35
2. median is 59
3. mode is 52 and 79
4. range is from 41 to 79 with a value of 38

Probability:
1. ¼

Expand Binomials:
1. x2 + x -6

Factor Quadratic Functions:
1. (2x + 3) (x – 5)

20101
Updated: June 5, 2007

[Franklin] [Schools] [Index] [Search]

[QuickSite]

This Web site has been developed for the benefit of residents, schools, businesses, and anyone who is interested in the town. It is a work-in-progress. We welcome your questions, comments, and feedback on how we can make it more useful and enjoyable to use. Please contact the Webmaster.

"Genius without education is like silver in the mine." - Benjamin Franklin

Copyright ©1995-2008 Town of Franklin, Massachusetts, All Rights Reserved. This website and its contents are the exclusive property of Town of Franklin. No contents may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the Town Administration. Permission to use includes acknowledging the source of the material. Click here to apply for permission.