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secondary 3 | A Maths
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Can someone help me with this question? Express the equation in the form a(x-h) ^2+k. Please provide clear explanation as well. Thanks.
Date Posted: 3 years ago
Views: 313
a(x-h) ² + k
= a•x² - 2ah•x + ah²+k
= -2•x² + 3•x + 4
a = -2
2ah = -3 ⇨ h = ¾ = 0.75
ah²+k = (-2)×(¾)² + k = 4
k = 4 + ⁹⁄₈ = 5.125
f(x) = -2•(x-0.75) ² + 5.125
= a•x² - 2ah•x + ah²+k
= -2•x² + 3•x + 4
a = -2
2ah = -3 ⇨ h = ¾ = 0.75
ah²+k = (-2)×(¾)² + k = 4
k = 4 + ⁹⁄₈ = 5.125
f(x) = -2•(x-0.75) ² + 5.125
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https://ask.manytutors.com/questions/119060
https://ask.manytutors.com/questions/119060
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Please revise completing the square. All the steps to approaching the “completing-the-square” questions are in the textbook for sure. If unsure, you can ask your classmates or even your subject tutor.
Date Posted:
3 years ago
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