Boy Mow Chau's answer to Anika's Junior College 2 H2 Maths Singapore question.
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for part (ii), this should be a possible method. however, the answer -44/27 looks a bit weird, so not sure if have mistake. you have the actual answers?
Date Posted:
3 years ago
explanation ...
note that as d varies, the curve is shifted vertically up and down. the x coordinate of the turning points remain the same.
we find the value of d when the maximum point just touches the x-axis, and also when the minimum point just touches the x-axis.
outside this range of d, the curve will cross the x-axis at only one point.
note: checked on the GC; answers should be correct.
note that as d varies, the curve is shifted vertically up and down. the x coordinate of the turning points remain the same.
we find the value of d when the maximum point just touches the x-axis, and also when the minimum point just touches the x-axis.
outside this range of d, the curve will cross the x-axis at only one point.
note: checked on the GC; answers should be correct.
Hello ! Yes yes the answer is actually correct . Thank you so much for your help !
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