Mathematics, 27.10.2019 22:43 girdwood797
Write the equation of the line that passes through the vertex of the parabola y=-2x^2+12x-11 and the point (-2,47)
Answers: 1
![\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{-2}x^2\stackrel{\stackrel{b}{\downarrow }}{+12}x\stackrel{\stackrel{c}{\downarrow }}{-11} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left(-\cfrac{12}{2(-2)}~~,~~-11-\cfrac{12^2}{4(-2)} \right)\implies \left( 3~~,~~-11+\cfrac{144}{8} \right) \\\\\\ (3~~,~~-11+18)\implies (3~~,~~7) \\\\[-0.35em] ~\dotfill](/tpl/images/0348/7359/add1e.png)
Another question on Mathematics
Mathematics, 21.06.2019 13:10
Identify whether the figure has plane symmetry, symmetry about an axis, or neither.
Answers: 1
Mathematics, 21.06.2019 15:40
Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?
Answers: 1
Mathematics, 21.06.2019 19:30
In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.
Answers: 2
Mathematics, 21.06.2019 19:30
Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)
Answers: 1
You know the right answer?
Write the equation of the line that passes through the vertex of the parabola y=-2x^2+12x-11 and the...
Questions
Mathematics, 21.10.2020 21:01
History, 21.10.2020 21:01
English, 21.10.2020 21:01
Mathematics, 21.10.2020 21:01
English, 21.10.2020 21:01
English, 21.10.2020 21:01
Spanish, 21.10.2020 21:01
Mathematics, 21.10.2020 21:01
Mathematics, 21.10.2020 21:01
Mathematics, 21.10.2020 21:01
Mathematics, 21.10.2020 21:01
