Mathematics 0580 · IGCSE · Algebraic manipulation

Algebraic manipulation — practice question

This gives $I=M(k^2+c^2)$.

(a)[2]

Calculate the value of $I$ for $M=7$, $k=3$ and $c=2$.

(b)[3]

Rewrite the formula so that $k$ is expressed in terms of $I$, $M$ and $c$.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The answer is 91.” …