Comic of the Day
Warm Up
Solve the system of equations by substitution
Announcements & Deadlines
- Homework (41 questions) for unit 6 due Thu, Apr 4 at 23:59
- Quiz 6 (19 questions, 90 min, 2 tries) opens Wed, Apr 3 and closes Thu, Apr 4 at 23:59
- Next unit exam (in class) Fri, Apr 5 (2 hours)
Today - Solving by Elimination
Notes
p. 205-208
Homework #21-27
Tomorrow - Algebraic Solutions
Pre-read p. 209-210
For more information
https://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/solving-systems-addition-elimination/v/solving-systems-by-elimination
https://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/solving-systems-addition-elimination/v/solving-systems-by-elimination-2
Comic of the Day
Warm Up
Which of the following relations are also functions?
a) 
(graph below)
b) 
(graph below)
c) 
(graph below)
d) (1,3),(2,4),(3,5),(2,6)
Announcements & Deadlines
- Homework (91 questions) for unit 5 due Thu, Mar 21 at 23:59
- Quiz 5 (32 questions, 90 min, 2 tries) opens Wed, Mar 20 and closes Thu, Mar 21 at 23:59
- Next unit exam (in class) Fri, Mar 22 (2 hours)
Today - Function Notation
Notes p. 181-185
Homework #71-79
Tomorrow - Domain and Range
Pre-read p. 186-191
For more information
https://www.khanacademy.org/math/trigonometry/functions_and_graphs/function_introduction/e/functions_1
https://www.khanacademy.org/math/trigonometry/functions_and_graphs/function_introduction/e/functions_2
Comic of the Day
Warm Up
The following graph is of the equation 2x + y - 3 = 0:
a) Express the equation in slope-intercept form
b) Express the equation in point-slope form, using the point (2,-1)
c) Express the equation as a table of values (x=-2,-1,0,1,2)
Announcements & Deadlines
- Homework (91 questions) for unit 5 due Thu, Mar 21 at 23:59
- Quiz 5 (32 questions, 90 min, 2 tries) opens Wed, Mar 20 and closes Thu, Mar 21 at 23:59
- Next unit exam (in class) Fri, Mar 22 (2 hours)
Today - Review Linear Equations
Finish Point-Slope Form
Notes p. 176-177
Homework #58-67
Tomorrow - Introduction to Functions
Pre-read p. 178-180
For more information
http://patrickjmt.com/find-the-equation-of-a-line-using-point-slope-form/
http://patrickjmt.com/graphing-a-line-using-a-point-and-slope/
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/equation-of-a-line/v/point-slope-and-standard-form
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/equation-of-a-line/e/converting_between_point_slope_and_slope_intercept
Comic of the Day
Warm Up
a) What is the equation of a line with a slope of 5 and a y-intercept of 2?
b) Sketch the graph of
Announcements & Deadlines
- Tutorial today (Tue, Mar 12, E201) is cancelled
- Homework (91 questions) for unit 5 due Thu, Mar 21 at 23:59
- Quiz 5 (32 questions, 90 min, 2 tries) opens Wed, Mar 20 and closes Thu, Mar 21 at 23:59
- Next unit exam (in class) Fri, Mar 22 (2 hours)
Today - Point-Slope Form
Draw a line parallel to y=2x+1, passing through the point (3,3)
Notes p. 175-177
Homework #58-67
Tomorrow - Review Linear Equations
For more information
http://patrickjmt.com/find-the-equation-of-a-line-using-point-slope-form/
http://patrickjmt.com/graphing-a-line-using-a-point-and-slope/
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/equation-of-a-line/v/point-slope-and-standard-form
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/equation-of-a-line/e/converting_between_point_slope_and_slope_intercept
Comic of the Day
Warm Up
a) Determine the slope of a line containing points A(3,4) and B(-3,4)
b) Determine the slope of a line that is parallel to line AB
c) Determine the slope of a line that is perpendicular to line AB
Announcements & Deadlines
- Tutorial tomorrow (Tue, Mar 12, E201) is cancelled
- Homework (91 questions) for unit 5 due Thu, Mar 21 at 23:59
- Quiz 5 (32 questions, 90 min, 2 tries) opens Wed, Mar 20 and closes Thu, Mar 21 at 23:59
- Next unit exam (in class) Fri, Mar 22 (2 hours)
Today - Slope-Intercept Form
Graph the equation y=2x+3 using a table of values with 5 points (x=-2,-1,0,1,2)
Slope-Intercept Form in GeoGebra
Notes p. 170-174
Homework #53-57
Tomorrow - Point-Slope Form
Pre-read pages 175-177
For more information
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/equation-of-a-line/v/graphs-using-slope-intercept-form
Comic of the Day
Warm Up
Predict the type of slope for each of the lines (+,-,0,undefined), then calculate the value:
a) left line of diagram
b) right line of diagram
c) a different line, containing points A(-5,-3) and B(-2,3)
Announcements & Deadlines
- Homework (91 questions) for unit 5 due Thu, Mar 21 at 23:59
- Quiz 5 (32 questions, 90 min, 2 tries) opens Wed, Mar 20 and closes Thu, Mar 21 at 23:59
- Next unit exam (in class) Fri, Mar 22 (2 hours)
Today - Parallel and Perpendicular Lines
The following images came up in a Google search for "Parallel" or "Perpendicular". Which is which?
Parallel and Perpendicular Lines in GeoGebra
Notes p. 164-166
Homework #43-52
For more information
Comic of the Day
Warm Up
Determine whether each of the following are linear equations:
a)
b) (1,5), (2,10),(3,15)
c) 
d) 
Announcements & Deadlines
- Homework (91 questions) for unit 5 due Thu, Mar 21 at 23:59
- Quiz 5 (32 questions, 90 min, 2 tries) opens Wed, Mar 20 and closes Thu, Mar 21 at 23:59
- Next unit exam (in class) Fri, Mar 22 (2 hours)
Today - Rate of Change
Which job is paid the most money?
a) $20/hr
b) $1000/wk
c) $50,000/year
Notes p. 158-163
Homework #35-42
Extra Practice Solving Equations
Addition
http://www.xpmath.com/forums/arcade.php?do=play&gameid=69#.UTeMdr_Ad8E
Subtraction
http://www.xpmath.com/forums/arcade.php?do=play&gameid=68#.UTeM2r_Ad8E
Multiplication
http://www.xpmath.com/forums/arcade.php?do=play&gameid=53#.UTeMtr_Ad8E
Division
http://www.xpmath.com/forums/arcade.php?do=play&gameid=72#.UTeNA7_Ad8E
Two-Step (combinations of the above)
http://www.xpmath.com/forums/arcade.php?do=play&gameid=64#.UTeNFL_Ad8E
For more information
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/slope-and-intercepts/v/slope-of-a-line
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/slope-and-intercepts/v/slope-of-a-line-2
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/slope-and-intercepts/v/slope-and-rate-of-change
Comic of the Day
Tip: If you get stumped by the first question, move on to the next one
Warm Up
Find the x-intercept and y-intercept of 3x - 4y = 12
Announcements & Deadlines
- Homework (91 questions) for unit 5 due Thu, Mar 21 at 23:59
- Quiz 5 (32 questions, 90 min, 2 tries) opens Wed, Mar 20 and closes Thu, Mar 21 at 23:59
- Next unit exam (in class) Fri, Mar 22 (2 hours)
Today - Linear Relations
For each of the following situations, sketch a graph to show the relation between the given variable and time:
a) the speed of a car on cruise control
b) amount of money earned for working at $10/hr
c) the number of homework questions remaining, if you start at 100 and do half each day
Notes p. 156-157
Homework #33-34
For more information
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/graphing_solutions2/e/interpreting_linear_equations
