Pre Calculus Fall 2020 Semester Exam

Is this graph a function or not a function? 

• Function 
• Not a Function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

  . 
The blue is f(x)=|x|, red must be

• g(x)=|x+2|
• g(x)=|x|+2
• g(x)=|x-2|
• g(x)=|x|-2

Tags

CCSS.HSF.BF.B.3

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

• A

• B

• C

• D

Write the following in interval notation
x < 3 or x ≥ 5

• (3, -∞) or (∞, 5]
• [-∞, 3) or [5, ∞]
• (-∞, 3) or [5, ∞)
• (3, -∞] or [∞, 5]

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.3

CCSS.HSA.REI.B.3

• A

• B

• C

• D

What is f(-3)?

• 4

• 0

• 6

• 2

What is the domain of the function in interval notation?

• $\left(-\infty,-7\right)\cup\left(-7,2\right)\cup\left(2,\infty\infty\right)$

• $\left(-\infty,-2\right)\cup\ \left(-2,7\right)\cup\left(7,\infty\right)$

• $\left(-\infty,-7\right)\cup\left(2,\infty\right)$

• $\left(-\infty,-2\right)\cup\left(7,\infty\right)$

Find the domain of  $f\left(x\right)=\frac{1}{\sqrt{x-5}}$  

•  $\left(-\infty,5\right]$  

•  $\left(-\infty,5\right)\left(5,\infty\right)$  

•  $\left(5,\infty\right)$  

•  $\left[5,\infty\right)$  

What is the value of f(0)?

• -2
• 2
• 4
• 0

Tags

CCSS.HSF.IF.A.2

What is the range of the function graphed?

• [1, ∞)

• (1, ∞)

• (-∞, ∞)

• none of these