2. What is the value of the axis of symmetry in the function y =(x – 8)2 + 12?
A 8
B. -8
C. 12
D. -12
3. Which of the following is the range of the function y = (x – 5)2 + 9?
A y - 5
B. y 5
C. y <-9
D.. y 29
4. What is the y-intercept of y = (x + 6)2 – 3?
A. (0,21)
B. (0,33)
C. (0,36)
D. (0,42)
5. If the graph of quadratic function moves upward, what is the possible value of k?
A. positive
B. zero
C. negative
D. undefined
6. Determine the equation of the quadratic function whose graph y=x2 shifted 3 units
upward and 2 units to the left
A y=(x - 2)² – 3
C. y = -(x - 2)2 – 3
B. y = (x + 2)2 – 3
D. y = (x + 2)2 + 3
7. Find an equation of a quadratic function whose zeros are ż and
3
A. f(x) = 6x2 – 7x - 3
C. f(x) = 6x2 + 7x - 3
B. f(x) = 6x2 - 7x + 3
D. f(x) = 6x2 + 7x + 3
8. If the perimeter of a rectangle is 100 m. Express the area of a rectangle as a
function of its width w?
A. A = 50w - w2
C. A = 50w + w2
B. A = 100w - w2
D. A = 100w + w2
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Answer:
2. A
3. NA Correct Answer: y≥9
4. B
5. A
Step-by-step explanation: