Circles
Parallel/Perpendicular
Point-Slope Form
Distance
Ms. Marsala
100

What is the center of the circle?

(x - 9)2 + (y + 2)2 = 16

(9,-2)

100

Lines that are parallel have the ___________ slope.

Same

100

Identify the slope of the equation:

y + 2 = 1/3(x - 5)

1/3

100

What is the distance formula?

Sqrt((x2-x1)2 + (y2-y1)2)

100

What is Ms. Marsala's favorite city in the world?

Salt Lake City, Utah

200

Identify the radius:

(x + 3)2 + y2 = 121

11

200

Lines that are perpendicular have slopes that are _______________   ________________.

Negative Reciprocals

200

Identify the point in the equation

y - 7 = -5(x + 1)

(-1,7)

200

Write the Pythagorean Theorem formula

a2 + b2 = c2

200

What is Ms. Marsala's favorite team in sports?

Chicago Blackhawks

300

What is the general formula of a circle with center (x1,y1) and radius r?

(x - x1)2 + (y - y1)2 = r2

300

Are the equations parallel, perpendicular, or neither?

y = 2x - 1

y + 3 = -1/2(x + 6)


Perpendicular

300

What is the general formula of a point-slope equation with point (x1,y1) with slope m?

y - y1 = m(x - x1)

300

Find the distance between (0,0) and (3,4)

5

300

How many US states has Ms. Marsala visited?

All 50 States

400

Graph the circle:

x2 + y2 = 9

Check Graph:  Must be a circle with a center at (0,0) and radius of 3

400

Write the equation of the line parallel to y = 3x + 2 through (-1,5)

y = 3x + 8

400

Write the equation in point-slope form through (3,2) with slope = -4.

y - 2 = -4(x - 3)

400

Find the distance between (-6,-10) and (-2,-10)

4

400

In what European country has Ms. Marsala traveled alone to visit family?

Sweden

500

Write an equation of a circle whose radius is 13.

The right side of the equation must contain the number 169.

500

Write the equation of the line perpendicular to y = -1/2x through (2,4)

y = 2x

500

Graph the equation:

y - 1 = 2/3(x + 2)

Check graph:  Must have point (-2,1) with slope 2/3

500

Find the distance between (-2,3) and (-7,-7)

11.18 or 11.2

500

Who is Ms. Marsala's favorite athlete in sports history?

Brent Seabrook (Retired Chicago Blackhawk)