1. January 14, 2014
Test
Ahead

2. Warm-Up:
3. Simplify:
Simplify: - |-14| - |17|
5. Solve: 12x - (6 + 8x) = ½(6x - 10)
6. Find the GCF: 6a²c² + 2ac² + 10ab²c3

3. Rate of Change/Slope:
Slope is usually represented by the letter m (from the
French, monter, which means “to go up”).
What is your rate of change in
The rate should
elevation?? (The slope of your descent.) be in ft./min.

4. Test Review:
1. What are the x and y intercepts of: 2x – 6 = y

5. Test Review:

7. Test Review: (Last Page)
What is the domain of this function?
Solve: 2x – 2 = -4
Find the x and y intercepts of a line passing
through (3, -2), and having a slope of -2
(2,0) (0,4)

8. Parallel & Perpendicular Lines:
Two lines are considered parallel if they
have the same slope.
Two lines are considered to be perpendicular to each
other if their slopes are the opposite inverse of each
other. Perpendicular lines cross each other at a 90°
angle.

9. Two lines
are
parallel
Slopes
are
equal
The lines
never
intersect

10. 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.

11. -1
This is in slope intercept form so y =
mx + b which means the slope is –1.
Use the point-slope
formula to find the
equation of the line
y -y1= -(x - x1)
y -4 = -(x - 2)
y = -x + 6

12. The slope of a line perpendicular
is the negative reciporical so
take –1 and "flip" it over and
make it negative.

15. Parallel & Test Review: Lines:
Perpendicular

16. Parallel & Perpendicular Lines:

17. Class Work:

18. Class Work:

19. Class Work: