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Sed (CoderLovesEggs) Paper 1 with Solutions · Q8

Paper 1TrigonometryFunctions & graphs

The full range of values of kk for which the graph of

y=ksin⁡x+(1−k)y=k\sin x+(1-k)

intersects the graph of

y=sin⁡x+(4+k)y=\sin x+(4+k)

is:

A−6≤k≤−43-6\le k\le-\dfrac43;
Bk≤−6k\le-6 or k≥−43k\ge-\dfrac43;
C−4≤k≤−23-4\le k\le-\dfrac23;
Dk≤−4k\le-4 or k≥−23k\ge-\dfrac23;
E−2≤k≤−43-2\le k\le-\dfrac43;
Fk≤−2k\le-2 or k≥−43k\ge-\dfrac43;
Gfor all values of kk;
Hfor no values of kk.

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