Parallel and Perpendicular
Equations of Circles
Transformations
Throwback: Statistics!
Angles
100

What is the slope of the line represented by this equation: 


y = 10x - 12


10

100

What is the center of this circle: 

100 = (x - 9)2 + (y + 2)2

(9, -2)

100

What is the name of this transformation? 


Double points if you can describe it precisely! 

Translation; 

8 units to the right and 4 units up. 

100

How do you calculate the mean of a data set? 

Add up all the values and divide by the number of data values. 

100

Name a pair of angles that is ALWAYS congruent. 

Vertical angles, right angles, etc. 

200

What is the slope of the line represented by this equation: 


y = -3 + 1/2x


1/2


200

What is the center of this circle: 

36= x2 + (y + 20)2

(0, -20)

200

What is the name of this transformation? 


Double points if you can describe it precisely! 

Dilation.


Precise description: dilation with a scale factor of 2. 

200

Can you have more than one mode?  If not, how do you decide what it is?

Yes

200

What is a pair of angles that is congruent ONLY when lines are parallel?

Alternate Interior, Alt. Exterior, Corresponding

300

How can you tell two lines are parallel? 

Same slope and different y - intercept

300

What is the radius of this circle: 

100 = (x - 9)2 + (y + 2)2

10

300

What is the name of this transformation? Describe it correctly


Reflection over the y - axis. 

300

Can you have more than one median? If not, how do you decide what it is?

No. If there are two middle numbers, take the mean of them to find the median. 

300

What is it called when angles add up to 90 degrees? 

Complementary


400

Identify the two lines that are parallel: 


A) -4 + 2x = y

B) y = -1/2x + 4

C) y = -2x + 1-

D) y = 8 + 2x

A and D

400

Write the equation of a circle with a center of (5, 0) and a radius of 3. 

 (x - 5)2 + y2 = 9 

or 

9 = (x - 5)2 + y2

400

What is the name of this transformation? Describe it correctly for bonus double points! 

Rotation


Precise description: 90o CW rotation about the origin

400

What is the median of this data? 

85

400

What is it called when angles are next to each other?

Adjacent
500

Identify two perpendicular lines: 

A) -4 + 2x = y

B) y = -1/2x + 4

C) y = -2x + 1-

D) y = 8 + 2x

A and B

500

What's the difference between a circle and an ellipse? 

Circles have a constant distance between the center and the circumference (constant radius) but ellipses can have different distances between the center and the circumference. 

500

What is the name of this transformation? Describe it correctly for bonus double points! 


Reflection


Precise Description: Reflection over the line y = x + 2

500

What is the IQR of this data? 

115 - 65 = 50