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Asher Falcon TMUA Paper 1 · Q15

Paper 1Functions & graphs

What is the range of cc for which x+4=x+c\sqrt{x+4}=x+c has exactly two real solutions?

A−4≤c≤4-4\le c\le4
B−4<c<4-4<c<4
C4≤c<1944\le c<\frac{19}4
Dc≤194c\le\frac{19}4
E−4<c≤194-4<c\le\frac{19}4
Fc<174c<\frac{17}4
G−4<c<174-4<c<\frac{17}4
H4≤c≤1744\le c\le\frac{17}4
I4≤c<1744\le c<\frac{17}4
J4<c<1744<c<\frac{17}4

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