Tap the word in each sentence that is wrong. The correct fix appears below.

Exercise and reference answers

Questions

1. Statement parts

   1. Slope
   2. between
   3. (2,4)
   4. and
   5. (5,6)
   6. is
   7. 3/2

   Correction

   Slope = (6 − 4)/(5 − 2) = 2/3, not 3/2.

   Incorrect part

   3/2

2. Statement parts

   1. Equation
   2. of
   3. circle
   4. centre
   5. origin
   6. radius
   7. 3

   Correction

   If asked for radius 5, the equation is x² + y² = 25, not x² + y² = 9.

   Incorrect part

   3

3. Statement parts

   1. Tangent
   2. and
   3. radius
   4. make
   5. an
   6. angle
   7. 60°

   Correction

   Tangent and radius at the contact point meet at 90°, not 60°.

   Incorrect part

   60°

Explanation