PRECALCULUS- PRACTICE TEST 2

What is the behavior of the graph of f(x)=(x^2)-4x+4 at x=2?

• local minimum
• local maximum
• point of inflection
• no critical point

What is the range of the function f(x)=(3x^2)-5?

• (-∞, -5]
• [-5,∞)
• (-∞,3]
• [3,∞)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

The graph of f(x)=(x^2)−4x+3 has its x-intercepts at:

• x=−3, x=−1
• x=3, x=1
• x=0, x=3
• x=4, x=−3

Tags

CCSS.HSF-IF.C.7A

The function f(x)=(−1/2)x^2 +4 has a maximum at which y-value?

• 2
• 4
• -4
• 8

What is the range of f(x)=|x|−3?

• (−∞,∞)
• [3,∞)
• [−3,∞)
• [−3,-∞)

Tags

AZ.MA.8.F.A.1

AZ.MA.9-12.A1.F-IF.B.5

What is the interval of decrease for f(x)=(-x^2)+4x-1?

• (-∞, 2)
• (2, -∞)
• (2,∞)
• (-∞,0)

Tags

CCSS.HSF-IF.C.7A

For the function f(x)=(x^2)−4x, the function is increasing on which interval?

• (−∞,2)
• (2,∞)
• (−∞,∞)
• (−∞,0)

Tags

CCSS.HSF-IF.C.7A

The function f(x)=(x^2)−9 has x-intercepts at:

• x=−9
• x=9
• x=−3 and x=3
• x=0

Tags

CCSS.HSF-IF.C.7C

What is the range of the function f(x)=2-(x^2)?

• (-∞,2]
• [2,-∞)
• (-∞,0]
• (-∞,1]

The graph of a function shows that the function is increasing from x=−3 to x=2, then decreases from x=2 to x=5. What is the behavior of the function from x=−3 to x=5?

• The function is always increasing.
• The function is always decreasing.
• The function increases then decreases.
• The function has no clear pattern.