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- 1. Multiple Choice
Identify the vertex of the following parabola.
y = x2 − 4x + 1
(2,-3)
(1/3, 4)
(-2, 3)
(-2,13)
- 2. Multiple Choice
Identify the axis of symmetry of the given parabola.
y = x2 − 4x + 1
x = 3
x = -3
x = -2
x = 2
- 3. Multiple Choice
What is the vertex of the following quadratic function?
y = (x-2)2 + 4
Vertex (2,4)
Vertex (3, -8)
Vertex (-2, 4)
Vertex (-4, -10)
- 4. Multiple Choice
Without graphing state whether the following quadratic function opens upward or downward?
y = -3x2 + 2x - 4
Upward
Downward
- 5. Multiple Choice
Write the following parabola in vertex form.
y = 3x2 + 18x + 32
y = a(x-h)2 + k where (h,k) is the vertex.
y = 3(x+3)2 + 5
y = 18(x - 3)2 + 0
y = (x+3)2 + 5
y = -3(x+18)2 - 5
- 6. Multiple Choice
Changing the c value of a standard form quadratic (y=ax2+bx+c) transforms the graph how?
Up and down
Left or right
Reflects over x axis
Up only
Creates a change in the universe that is so chaotic it creates a new galaxy
- 7. Multiple ChoiceWhat is the y-intercept?
f(x) = -2x2 + 4x - 6(0, 6)(0, -6)(6, 0)(-6, 0) - 8. Multiple ChoiceWhat is the axis of symmetry?
f(x) = x2 - 8x + 15.x = -4x = 4y = 4y = -4 - 9. Multiple ChoiceWhat is the vertex?
f(x) = -x2 - 4x + 12.(-2, 16)(2, 0)(2, 4)(-2, 4) - 10. Multiple Choice
.How many zeros does this parabola have?3201 - 11. Multiple ChoiceIn order to graph a quadratic equation in standard form, the first two steps are to use the equation _____ to find the axis of symmetry (which is the x coordinate of the vertex), and then you can plug that value back into the equation to find the _____.-b/2a, y coordinate of the vertex(x-h)^2, y-intercept(x-r1), solutionax^2, vertex
- 12. Multiple ChoiceIf the blue is f(x)=x2, the red must beg(x)=(x+3)2g(x)=(x-3)2g(x)=x2+3g(x)=x2-2
- 13. Multiple ChoiceDoes the equation open up or down?
Y = -3x2 +7x - 2updownbothneither - 14. Multiple ChoiceHow did we transform from y=x2?
y = -3x2reflection and vertical shift downreflection and vertical stretchhorizontal stretchreflection and vertical compression - 15. Multiple ChoiceWhich transformation maps the graph of
f(x) = x2 to the graph of g(x) = (x + 4)2?horizontal shift right 4 unitsvertical shift up 4 unitshorizontal shift left 4 unitsvertical shift down 4 units - 16. Multiple ChoiceWhich quadratic function is represented by the graph?y = 2(x - 4)2 + 5y = 2(x + 4)2 + 5y = -2(x - 4)2 + 5y = -2(x + 4)2 + 5
- 17. Multiple ChoiceWhat is the axis of symmetry for the following equation?
y=4x2-8x+9x=-8x=1x=-1x=2 - Answer choicesTagsAnswer choicesTags