Download Review Ch. 3 and 4 for Final.notebook

Review Ch. 3 and 4 for Final.notebook
January 15, 2013
Review for Quiz + Ch. 3 and 4
Solve each system. Determine the number of solutions and tell whether it is consistent, inconsistent, dependent, independent.
1. x 3y = 1
–
{
–
y = x 5
2. y = 2x 8
–
Consistent Inconsistent
Dependent Independent
Consistent Inconsistent
Dependent Independent
{
3. y > x ­ 8
y ≤ ­2x + 4
{
Warm­up Answers
Solve each system. Determine the number of solutions and tell whether it is consistent, inconsistent, dependent, independent.
1. x 3y = 1
{ – –
y = x 5
2. y = 2x 8
–
Consistent Inconsistent
Dependent Independent
Consistent Inconsistent
Dependent Independent
{
3. y > x ­ 8
y ≤ ­2x + 4
{
Review Ch. 3 and 4 for Final.notebook
Review for Chapter 3
3­1 Graphing Relationships
3­2 Relations and Functions
3­3 Writing Functions
3­4 Graphing Functions
3­5 Scatter Plots and Trend Lines
3­6 Arithmetic Sequences
For the following scenarios state domain, range, independent variable, dependent variable, discrete or continuous, function?, equation?, then graph.
1. A student was doing the final exam at the rate of 1 problem for every two minutes.
2. A ball dropped from a 30 foot building.
3. A cup of tea cooled from 2000F to room temperature.
January 15, 2013
Review Ch. 3 and 4 for Final.notebook
January 15, 2013
For the function listed, find f(­3), f(1) and graph:
4.
5.
6.
Find the next term and the indicated term of each arithmetic sequence:
7. 42nd term of 3, 5, 7, ...
8. 27th term of ­4, ­7, ­10, ...
Review for Chapter 4
4.1 Identifying Linear Functions
4.2 Using Intercepts
4.3 Rate of Change and Slope
4.4 The Slope Formula
4.5 Direct Variation
4.6 Slope­Intercept Form
4.7 Point­Slope Form
4.8 Line of Best Fit
4.9 Slopes of Parallel and Perpendicular Lines
4.10 Transforming Linear Functions
Review Ch. 3 and 4 for Final.notebook
January 15, 2013
4.1 Identifying Linear Functions
4.2 Using Intercepts
4.4 The Slope Formula
4.6 Slope­Intercept Form
4.7 Point­Slope Form
Standard:
Slope­Intercept:
Point­Slope:
Now Graph...
4.5 Direct Variation
If y varies directly with x and y = 7 and x = ­28, a) write the equation that represents this relationship.
b) find y when x is ­7
Review Ch. 3 and 4 for Final.notebook
January 15, 2013
4.6 Slope­Intercept Form
Write in slope­intercept form and graph the line.
a) 5x + 10 = ­5y b) y + 4 = ­2(x 5)
c) 5x + 2y ­ 8 = 0
–
4.8 Line of Best Fit
Use the table to find the equation for the line of best fit.
Homework Completion 50
Percentage
Test Score
65 79 90 95
62 75 81 94 99
a) interpret the meaning of the slope and y­intercept
b) use your equation to predict the test score based on 85% hmwk
c) how well does the line of best fit represent the data? r­value?
4.9 Slopes of Parallel and Perpendicular Lines
Write an equation in slope­intercept form for the line described.
1) Contains the point (4, ­6) and is parallel to y = ­3x + 7.
2) Contains the point (12, –2) and is perpendicular to y = ­6x + 5.
Review Ch. 3 and 4 for Final.notebook
Ch. 5 Review p.376
#7, 11, 17, 19, 21, 23, 28 ­ 30, 35 ­ 37, 53, 55, 58, 59
January 15, 2013
5.5
Review Ch. 1
5.6 Review Ch. 2
Review Review Ch. 5 Ch. 5 and Ch. 3 & 4
Test Ch. 5
Final Exam Review
5.4
No school
Review for Final