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- 1. Multiple Choice
If given the equation
y = 3x2+30x+21,
what is the vertex of the parabola?
(5, -4)
(-5, -4)
(-15, -4)
(15, -4)
- 2. Multiple Choice
Given the equation for this parabola:
y=-2x2-3x+2,
does this parabola have a maximum or minimum value?
Maximum
Minimum
- 3. Multiple ChoiceThe axis of symmetry line passes through which point?y-interceptany random pointvertexsymmetrical point for the vertex
- 4. Multiple Choice
What is the green dashed line called?roots or x-interceptsparabolaaxis of symmetryline of dashes - 5. Multiple ChoiceA parabola has a vertex at (-3,2).
Where is the axis of symmetry?y = -2x = 3x = -3y = 2 - 6. Multiple Choice
Which equation has a vertex of (-3, 4)?
y = 2x2 +12x+22
y = x2 +6x+5
y = x2 -6x+13
y = 2x2 -12x+13
- 7. Multiple ChoiceThe graph of a quadratic function is called aParabolaVertexAxis of SymmetryVertex Form
- 8. Multiple ChoiceWhat causes the graph of y = x2 to open downward?multiply the x2 by a fractionmultiply the x2 by a decimalmultiply the x2 by a negative numbermultiply the x2 by a number greater than 1
- 9. Multiple Choice
What is the y-intercept of
f(x)=2x2 + 4x + 6
(hint: Sub in zero for x)
(6 , 0)
(-6 , 0)
(0, -6)
(0 , 6)
- 10. Multiple Choice
Find the vertex of
f(x) = -x2 - 4x + 12
(hint: this is standar form. You need opposite b over 2a!)
(-2, 16)
(2, 0)
(2, 4)
(-2, 4)
- 11. Multiple ChoiceWithout using a graphing calculator: What direction is the following equation opening?
y=-3x2-7x+8UpDown - 12. Multiple Choice
What is the vertex of the following equation?
y=5x2-30x+50
(3,5)
(-3,5)
(3, -5)
(-3,-5)
- 13. Multiple ChoiceWhat is the axis of symmetry for the following equation?
y=4x2-8x+9x=-8x=2x=-2x=4 - Answer choicesTagsAnswer choicesTags