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Learn quadratic and polynomial functions practice test MCQs: x coordinate of vertex is, for free online courses with options −b⁄2a, b⁄2a, −2a⁄b, 2a⁄b for masters in business administration. Free skills assessment test is for e-learning online quadratic functions characteristics quiz questions for competitive assessment in math major.

MCQ: In quadratic function, parabola will concave up if

1. a = 0
2. a = 3
3. b = 3
4. b = 4

B

MCQ: X coordinate of vertex is

1. −b⁄2a
2. b⁄2a
3. −2a⁄b
4. 2a⁄b

A

MCQ: In quadratic function, parabola will concave down if

1. c = -5
2. c = -2
3. b = -4
4. a = -2

D

MCQ: 'concave up' parabola point where it bottoms out is considered as

1. left vertex
2. convex vertex
3. vertex of parabola
4. concave vertex

C

MCQ: In quadratic function ax²+bx+c, condition for solving is

1. a is equal to zero
2. b is equal to zero
3. a cannot be equal to zero
4. c cannot be equal to zero

C