Pre-Calc 1.1 - 1.3 Review

• $x\ne\frac{9}{2}$

• $x\ne-\frac{9}{2}$

• $x=\frac{9}{2}$

• $x=-\frac{9}{2}$

Tags

CCSS.HSF-BF.A.1B

• $x\ne10$

• $x\ne-10$

• $x\ne-2$

• $x\ne2$

Tags

CCSS.HSF-BF.A.1B

What is the Range?

• y ≥ 6
• y ≤ 6
• -10 ≤ y ≤ 6
• -10 ≤ x ≤ 6

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the Domain?

• -10 ≤ y ≤ 6
• y ≤ 6
• -10 ≤ x ≤ 6
• All Real Numbers

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Explain why x = 3 cannot be included in the domain. Choose the best answer.  $f\left(x\right)=\frac{1}{x-3}$  

• If you plug in x = 3, you get 0 in the denominator which causes the function to be undefined.

• If you plug in x = 3, the function equals 0.
  

• x = 3 would make the value equal 0

• x = -3 makes the function undefined

 $f\left(x\right)=\sqrt{x-2}$  

Explain why the domain of the function f(x) cannot include values of x that are less than 2. Choose the best answer.

• Values that are less than 2 would result in a negative value inside the square root which would cause the function to be undefined.

• Values that are less than 2 are negative

• x-values that are greater than 2 would be negative

• x-values that are less than 2 would make the function irrational.

Tags

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.B.5

• 1

• -2

• 4

• 0

Tags

CCSS.HSF-BF.A.1C

Is this table a function or not a function?

• Function; each input has a unique output

• Not a Function; there is an input with two different outputs

Tags

CCSS.8.F.A.1

Given f(x) = x² - 3 and g(x) = x - 3, find f(g(f(3))).

• 0
• 3
• 6
• 9

Tags

CCSS.HSF-BF.A.1C

Is this a function? Explain.

• Yes; it passes the horizontal line test.
• No; it is not a straight line.
• Yes; it passes the vertical line test.
• No; there is a line connecting the dots.

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5