examday

Official papers

Official 2020 Paper 2 · Q1

Paper 2Algebra

Find the complete set of values of kk for which the line y=x−2y=x-2 crosses or touches the curve y=x2+kx+2y=x^2+kx+2.

A−1≤k≤3-1\leq k\leq3
B−3≤k≤5-3\leq k\leq5
C−4≤k≤4-4\leq k\leq4
Dk≤−1k\leq-1 or k≥3k\geq3
Ek≤−3k\leq-3 or k≥5k\geq5
Fk≤−4k\leq-4 or k≥4k\geq4

Read the questions freely. Sign in to check your answer, see the worked solution and save your progress.

Sign in to check your answerPractise the whole paper →