homework #3

I have ten algebra problem that need to be done by 11/25/12

MATH 107

• Show work/explanation where indicated. Answers without any work may earn little, if any, credit. You may type or write your work in your copy of the quiz, or if you prefer, create a document containing your work. Scanned work is also acceptable. In your document, be sure to include your name and the assertion of independence of work.

1. Simplify the following. Write your answers in the form of , where a and b are real numbers. Show your work. (16 pts)

a) 3(6 + 4) =

b) (7 – (2 + =

c) + =

d) =

2. Use the quadratic formula to find the exact solutions. Show your work. (8 pts)

a)

b)

3. Solve by completing the square to obtain exact solutions. Show your work. (8 pts)

a)
b)

4. Solve the given equation for x. Show your work. (4 pts)

5. Find the zeros of the function. Show your work. (4 pts)

6. Find the coordinates of the vertex point, the equation of the line defined by axis of symmetry and the maximum or minimum value of the following functions.

Use the standard quadratic equation to show your work where vertex point is (h, k) (16 pts)

a)

b)

7. Find the intervals on which the function is increasing and the intervals on which the functions is decreasing. Show your work and explain. (16 pts)

a)

b)

8. Solve the following. Show your work. (28 pts)

a) – =

b) – =

c) -5

d)