Other questions in this quiz

2. Equation of a line

  • Square Root of: (x2-x1)^2 + (y2-y1)^2
  • (x-x1)=m(y-y1)
  • (y-y1)=m(x-x1)
  • [(x2-x1)^2 + (y2-y1)^2]^2

3. Equation of a circle, with centre (a,b) and radius r

  • (x-a)^2+(y-b)^2=r^2
  • y=abx+r
  • (x-b)^2+(y-a)^2=r^2
  • r^2+(x-b)^2+(y-a)^2=0

4. What is the discriminant?

  • b^2-(4ac)
  • Square Root of: b^2-(4ac)
  • -b+(4ac)/2a
  • 2a-4bc

5. Midpoint of two points

  • (y-y1)=m(x-x1)
  • (x2-x1)/2 , (y2-y1)/2
  • (y2-y1)/(x2-x1)
  • (x2-x1)/(y2-y1)

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