Complete the circle method

Exercise and reference answers

Missing parts

1. Answer

   one

   Choices

   1. one
   2. two
   3. zero

2. Answer

   (−g, −f)

   Choices

   1. (−g, −f)
   2. (g, f)
   3. (2g, 2f)

3. Answer

   √(g²+f²−c)

   Choices

   1. √(g²+f²−c)
   2. g²+f²−c
   3. √(g²+f²+c)

Complete the statement

Before reading off the centre, divide so the coefficients of x² and y² are {0}. The centre is then {1} and the radius is {2}.

Instructions

Tap the right word into each blank.