The document provides a daily schedule and notes for a math class that includes reviewing graphing inequalities, practicing related questions on Khan Academy, and an introduction to parallel and perpendicular lines. It shares the students' time spent on Khan Academy problems over the past week and notes there will be a test this week on graphing inequalities and parallel/perpendicular lines. Examples are given for finding the equations of parallel and perpendicular lines.

1. Today:
News & Notes
Warm-Up
Review: Graphing Inequalities
Khan Academy Practice Questions
Introduce: parallel & Perpendicular Lines

2. News & Notes:
1. very nice work on Khan Academy this past week and weekend. I
am sincerely impressed.
Day: total minutes: hours:
Thursday 829 13.82
Friday 1158 19.30
Saturday 1154 19.22
3-day totals: 3141 52.35
2. Test this week (thurs. or Fri.) on graphing inequalities, parallel and
perpendicular lines. what you do, (or don't do) everyday affects your
grade. Be responsible, you'll feel good, really.

3. Warm-Up:
1.
2. From the table, determine the function, fill in the missing values,
and write the equation solving for y (y = )

4. Warm-Up:
3. From the table, determine the function, fill in the missing values,
and write the equation solving for y (y = )
4.
4. (7x + 2) - (3x - 5) 5. (3x + 2) (5x + 4)
6.

5. Warm-Up:
7. Find the GCF: 6a²c² + 2ac² + 10ab²c3
8. Simplify:
9.
a. What's wrong
with this picture?
10.
b. 40 ounces cost $5.20.
What's the unit price?

6. Khan Academy Practice

7. Khan Academy Practice

8. Khan Academy Practice

9. Khan Academy Practice

10. Parallel & Perpendicular Lines
Two lines
are
parallel
Slopes
The lines
are
never
equal
intersect

11. Parallel & Perpendicular Lines
parallel lines have the same slopes so find
the slope of the given line and the slope you
want for a parallel line will be the same.
Perpendicular lines have negative reciprocal
slopes. take the slope of the given line, switch
the numerator and denominator and change
the sign for the slope of its perpendicular line.

12. Parallel & Perpendicular Lines
Let's find the equation of a line parallel to
y = - x that passes through the point (2, 4)
y=-x
What is the slope of the first line,
(2, 4) y=- x? 1
This is in slope intercept form so y
= mx + b which means the slope is
use the point-slope 1.
formula to find
the equation of the
line
y -y1= -(x - x1) y -4 = -(x - 2) y = -x + 6

13. Parallel & Perpendicular Lines
Let's find the equation of a line
perpendicular to y = - x that passes thru
y=-x the point (2, 4)
The slope of the first line is
(2, 4) still –1.
The slope of a line perpendicular
is the negative reciporical so
take –1 and "flip" it over and
make it negative.
1 1
1 1
So the slope of a perpendicular line is 1 and it passes
through (2, 4).

14. Parallel & Perpendicular Lines

15. Parallel & Perpendicular Lines

16. Class Work: