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| find the vertex of y = x^2 + 4x +3 ---------------------------------------------- take half the coefficient of x along with the sign and use that to complete the square finally compare with (x-a)² = C (y-b) to extract the vertex (a ,b) answer and some steps are given below ================ * * ================ y = x² + 4x +3 implies y = (x+2)² +3 -2² y = (x+2)² - 1 y + 1 = (x+2)² vertex is ( -2 , -1) index of problems with some classification --------------index |
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| (index of
articles) formulae on sequences and series (trig. formulae) (integration formulae) (other math problems without classification) (formulae on differentiation) rbmix.com tags: conics, parabola, vertex, completion of square, math , homework help, tutor |
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