Quiz 1 Solutions - MAT 121 QUIZ#1 SECTION 1 or I DEFINE 1...

M AT 121
QUIZ #1
SECTION 1 – 02/06/13 or 02/07/13
I. DEFINE
1. Distance Formula for 2 pts on the Cartesian Coordinate System
2. Circle Formula For Radius/Center-radius Form
3. Slope
4. Parallel Lines
5. Perpendicular Lines
II. SHORT ANSWER
1. Show how we can start with the Center-Radius Form of a circle and finish with
the General form of the equation of a circle.
III. PROBLEMS
1. Find the distance between the two points below and then show the two points on
a graph
a. (2, 6) and (-5, -7)
(- 5 - 2) 2 +(- 7 - 6) 2
= 49 +169
= 218 » 14.76
2. Find an equation of a circle that satisfies the given conditions
3. If an antenna can pick up a tv signal that is 28 miles away, which of the following
stations can be accessed by the antenna:
a. Station A is 15 miles north, 18 miles east
(15 – 0)