2.7 Domain and Range

2.7 Domain and Range

Multiple Choice

Bell Work

Solve for x.

3x + 2(4x - 4) = 3

• 4

• 3

• 2

• 1

Thursday, February 4th

Objective: Students will identify the domain and range of functions.

• Bell Work

• Lesson 2.7 Domain and Range

• Quiz 2.7 in Breakouts

• Office hours today at 2pm

2.7 Domain and Range

• Domain is the set of input values. (x-values)

• Range is the set of output values. (y-values)

Find the domain and range. (List from small to big).

List the domain and range. Do not repeat numbers in your list.

Range from a graph.

There are infinitely many points on this graph.

a) What is the highest y-value?

b) What is the lowest y-value?

c) What is the range?

Domain from a graph.

There are infinitely many points on this graph. It just gets wider & wider.

a) What is the smallest x-value?

b) What is the biggest x-value?

c) What is the domain?

Range is how "tall" the graph is.

Domain is how "wide" the graph is.

What is the domain and range?

What is the domain and range?

Multiple Choice

What is the domain of the graph?

• [1,∞)
• (-∞,1]
• (-∞,∞)
• [-∞,∞]

Multiple Choice

What is the domain?

• (-3 , 3)

• [-4, 5]

• (-4, 5)

• (-3, 3]

Multiple Choice

What is the domain?

• $\left(-\infty,\ -3\right]$
  

• $\left[3,\ -\infty\right)$
  

• $\left(-\infty,3\right]$

• $\left(-\infty,\infty\right)$

• None of the answer choices

Multiple Choice

What is the domain of the relation shown in the table?

• {12}

• {6, 18}

• {3, 9, 15, 16}

• {13}