State the formula for finding slope.

#3
a. congruent
b. supplementary
c. congruent
#1
a. 2 angles whose measures add to 90 degrees
b. 2 angles whose measures add to 180 degrees
c. 2 straight lines that intersect to form a right angle
#13
a. the same
b. opposite reciprocals
c. y=mx+b

If line c is parallel to line d, what type of angles are 1 and 9?
Corresponding Angles
4a
4b
4c
4d
4e
4a. congruent
4b. same side interior angles
4c. congruent
4d. corresponding angles
4e. supplementary
#5
a. No
b. Yes
c. No
d. Yes
#2
Vertical angles are congruent
#14
m=1/6
y=(1/6)x-3

If line a is parallel to line b, what types of angles are angles 10 and 11?
Same Side Interior Angles
4f
4g
4h
4i
4f. Alternate Interior Angles
4g. Angles 2, 6, and 8
4h. Supplementary
4i. Angles 1,3,5,7
8a
8b
8c
8a. Yes; angles 8 and 10 are alternate interior angles
8b. No; we are not given enough information
8c. Yes, angles 16 and 14 are corresponding angles
#10
Same Side interior Angles
x=39
#15
m=17/5
If line c is parallel to line d, what is the relation between angles 10 and 14?
We are not given enough information to identify what types of angles this pair is.
#6
a. line c is perpendicular to line b
b. line b is parallel to line c
c. line b intersects line c
8d
8e
8d. Alternate interior Angle Theorem
8e. Corresponding Angles Postulate
#9
1.Given
2.Vertical Angles Theorem
3.Alternate Interior Angles Theorem
4.Transitive Property
#16
y=4x-14
Find the slope of a line perpendicular to the line passing through (-23,8) and (12,-17).
perpendicular m= 7/5
What is the term for a line that crosses at least two other lines?
Transversal
#12
Corresponding Angles Postulate
x=22
#11
See Review Key
#17
a. m=1/7
b. m=1/7
c. parallel lines
Write an equation, in slope intercept form, of the line that passes through (-1,2) and is parallel to the line whose equation is y=9x+5.
parallel m= 9
y=9x+11