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Question
secondary 3 | A Maths
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I arrived at a weird answer of
K < -0.791 ._.
Date Posted: 4 years ago
Views: 178
y = 2kx + 3
y = x² + k(k-4)
2kx + 3 = x² + k² - 4k
x² - 2kx + k² - 4k - 3 = 0
no real roots
4k² - 4(k² - 4k - 3) < 0
4k² - 4k² + 16k + 12 < 0
k < -0.75
.
.
.
y = x² + k(k-4)
2kx + 3 = x² + k² - 4k
x² - 2kx + k² - 4k - 3 = 0
no real roots
4k² - 4(k² - 4k - 3) < 0
4k² - 4k² + 16k + 12 < 0
k < -0.75
.
.
.
See 1 Answer
done
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Date Posted:
4 years ago
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