2. Category # of Assignments Weight
Class Work 10 Graded 20%
Home Work 18 Topics 20%
Tests
6;
(5 counted)
40%
Notebook 1 10%
Final Exam 2 Parts .05% Each
Grades & Weighting: All Quarters
3. Mrs. Wright rents a car to see her friend Mrs. Wong. The cost
is $32.00 plus $.75 a mile. The trip is 45 miles each way. What
is the total cost for Wright to see Wong?
A. $32.75 B. $99.50 C. $75.00 D. $65.75 E. None
4 Most Missed Questions from Final Exam
#4; Version 1: 39% correct
#3; Version 1: 37% correct
Solve for p: A = (ap + pH)
A) p = a + H B) p = A C) p = A – a D) p = H - a E. None
A a + H H A
4. 4 Most Missed Questions from Final Exam
#2; Version 2: 36% correct
A. 125% B. 90% C. 55% D. 80% E. None
5. 4 Most Missed Questions from Final Exam
#1; Version 4: 26% correct
A.
−𝟑
𝟓
B.
𝟏
𝟏𝟎
C.
𝟏
𝟓
D.
𝟏
𝟐𝟎
E.
−𝟐
𝟓
What is the slope of the line 𝟒𝒚 + 𝟑 =
𝟏
𝟓
𝒙?
6. 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.
Parallel & Perpendicular Lines:
10. EXAMPLE 2
Determine whether lines are parallel or perpendicular
Line a: y = 5x – 3
Line b: x + 5y = 2
Line c: –10y – 2x = 0
SOLUTION Find the slopes of the lines.
Write the equations for lines b and c in slope-intercept
form.
11. EXAMPLE 2
Line b: x + 5y = 2 5y = – x + 2
Line c: –10y – 2x = 0 –10y = 2x y = – x1
5
Determine whether lines are parallel or perpendicular
xy =
2
5
1
5 +–
Line a: The equation is in slope-intercept form.
The slope is 5.
12. Determine which lines, if any, are parallel or
perpendicular.
Line a: 2x + 6y = –3 Line b: y = 3x – 8
Line c: –1.5y + 4.5x = 6
ANSWER
parallel: b and c; perpendicular: a and b, a and c
Final Question:
13. Class Work:
3-1
Front side is a review of
coordinate plane thus far
Back side is
Parallel/Perpendicular
