Summative Exam 3: Chapter 3

Complete Name: (Last Name, First Name)

Class Period

• 1st Period
• 2nd Period
• 5th Period

1) What is the quadratic standard equation of the given equation below? 4x^2 + 3x - 2 = -5 - x + 3x^2

• A) 7x^2 + 2x - 7 = 0
• B) x^2 + 4x + 3 = 0
• C) x^2 + 4x - 3 = 0
• D) x^2 - 4x + 3 = 0

2) Write the quadratic equation in standard form: 11x^2 = 5 +17x Note 1: Use the model: ax^2+bx+c=0 Note 2: Do not use spacing in your entries. Note 3: There are only two possible answers. Select only 1 answer at your preference.

3) What is the vertex of y = -x^2 + 6x + 1?

• A) (-2, -11)
• B) (10, 3)
• C) (2, 11)
• D) (3, 10)

4) What is the axis of symmetry of y = -x^2 + 6x + 1?

• A) x=1
• B) x=2
• C) x=3
• D) x=10

5) Which term is applicable in describing y = -x^2 + 6x + 1 as to if it has a maxima or a minima?

• A) Maxima
• B) Minima

6) Which term is applicable in describing y = x^2 + 4x - 7 as to if it has a maxima or a minima?

• A) Maxima
• B) Minima

7) What is the maxima or minima of y = -x^2 + 6x + 1?

• A) Maxima: y = 10
• B) Minima: y = 10
• C) Maxima: x = 3
• D) Minima: x = 3

8) What is the interval of increase of y = -x^2 + 6x + 1? Hint: Interval of increase or decrease is always based with respect to x and from left to right.

• A) From x = negative infinity to x = 3 or (negative infinity, 3)
• B) From x = positive infinity to x = 3 or (positive infinity, 3)
• C) From x = negative infinity to x = 10 or (negative infinity, 10)
• D) From x = positive infinity to x = 10 or (positive infinity, 10)