Mathematics 9709 · AS & A Level · Differentiation

Differentiation — practice question

(main)[6]

The line $3y + x = 25$ is a normal to the curve $y = x^2 - 5x + k$. Determine the value of the constant $k$.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correct tangent gradient found from the stated normal” …

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI