Joint Variation

• Joint variation

  When a varies jointly as b and c, it means a = k*b*c, where k is the constant of variation
• Translating joint variation statement into mathematical equation

  1. a = k*b*c

  2. a = k*b²

  3. a = k*b*h

  4. v = k*h*r²

  5. h = k*r*i²

  6. f = k*m*a

  7. a = k*b*h
• Joint variation

  • Involves three or more variables simultaneously
  • Combines direct and inverse variation
• Finding the constant of variation k

  Substitute known values of a, b, c into the equation a = k*b*c and solve for k