- 1. Which of the equations below is a quadratic function?
A) f(x)=2x2+3x-12
B) f(x)=5
C) f(x)=7x
D) f(x)=2x-4
- 2. When you graph a quadratic function, its shape is called a _____.
A) parabola
B) line
C) triangle
- 3. Simplify the following expression by multiplying. (x+2)(2x-5)
A) 2x2 - x + 10
B) 2x2 - x - 10
C) 2x2 + x - 10
D) 2x2 - 5x - 10
- 4. What is the y-intercept?
A) 10
B) 4
C) -4
- 5. What is the maximum value?
A) 1
B) 10
C) 9
- 6. What true about this graph?
A) the vertex is both a minimum and maximum
B) The vertex is a minimum
C) The vertex is a maximum
- 7. What are the x-interecepts of the graph?
A) -1 and -4
B) -1 and 4
C) 0 and 3
- 8. What is the maximum value of the parabola?
A) 8
B) -3
C) 3
- 9. What is the minimum value?
A) 4
B) 7
C) 3
- 10. Use your graphing calculator to find the vertex of f(x)=x2+4x+3?
A) (-3, -1)
B) (-2, -1)
C) (-1, -2)
D) (2, -1
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