Test

Parabolas

John Doaks 6 preguntas

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Preguntas del test (6)

1In standard form for parabolas ax^2 + bx + c = y, what coefficient is responsible for the parabola opening up or down?
1. Aa
2. Bb
3. Cx
4. Dc
5. Ey
2Which of the following formulas represents the standard form of a parabola?
1. Ay = a^2 + b^2 − c^2
2. By = ax^2 − b + c
3. Cy = mx + b
4. Dy = ax^2 + bx + c
3For the equation, y = ax^2 + bx + c, what values of the coefficient a will determine that the graph will widen?
1. Aa = 1
2. B0 < |a| < 1
3. Ca > 1
4. D−1 < a < 0
4What is vertex form of the parabola?
1. Ay = mx + b
2. By = a^2 + b^2
3. Cy = ax^2 + bx + c
4. Dy = a(x − h)^2 + k
5A parabola can be defined as a curve where any point is at an equal distance from which two of the following?
1. Athe denominator
2. Bthe focus
3. Cthe directrix
4. Dthe hypotenuse
5. Ethe vertex
6In vertex form of a parabola, where is the vertex located?
1. A(−h,−k)
2. B(0,0)
3. C(h,k)
4. D(0,k)
5. E(0,h)