Graph the equation. Identify the coordinates of the vertex.y = -x2 - 2x + 8

A. (1, 9)
B. (- 1, - 9)
C. (- 1, 9)
D. (1, - 9)


Answer: C

Mathematics

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Show that the points form the vertices of the indicated polygon. ? Isosceles triangle: (7, 1), (5, 4), (2, 6) ?

A. Distances between the points: 
B. Distances between the points: 
C. Distances between the points: 
D. Distances between the points: 
E. Distances between the points: 

Mathematics

Find the simplest form of a second-order homogeneous linear differential equation that has the given solution.y = c1e5x + c2xe5x 

A. D2y - 10Dy + 25y = 0 B. D2y - 10Dy - 25y = 0 C. D2y - 5Dy + 25y = 0 D. D2y + 10Dy + 25y = 0

Mathematics

Divide.8531 ÷ 46

A. 185 B. 185 R 21 C. 188 R 5 D. 188 R 38

Mathematics

Find the focus and directrix of the parabola.y2 - 36x = 0

A. F: (0, 9); D: y = -9 B. F: (9, 0); D: x = 9 C. F: (9, 0); D: x = -9 D. F: (9, 0); D: y = -9

Mathematics