1. Before: October 19, 2017
A function is represented by f (x) = 2x + 5. Find f (3).
Create a table representing the above function with a domain: {1,2,3,4}
Give the range of the function with the given domain.

2. During: Graphing Relationships
Learning Targets
I can represent a set of ordered pairs as a table.
I can transfer data from a table into ordered pairs.
I can translate a verbal phrase into a function and sketch graphs.
I can show the difference between a table and mapping and explain their features.

3. THINK & DISCUSS: Show the relationship as a table and mapping diagram
THINK & DISCUSS: Show the relationship as a table and mapping diagram. {(1, 2), (3,2), (4,6), (2,4)} Think & discuss the similarities and differences explaining the features of each and how they can be used.
Table
Mapping Diagram x y
Think – tables clearly show ordered pairs which will be useful when graphing.
Mapping Diagrams – clearly

4. We Do: Graph the function for the given domain
We Do: Graph the function for the given domain. x – 3y = –6; D: {–3, 0, 3, 6}
Step 1 Solve for y since you are given values of the domain, or x.
x – 3y = –6

5. Graph the function for the given domain. x – 3y = –6; D: {–3, 0, 3, 6}
Step 2 Substitute the given value of the domain for x and find values of y. x
(x, y)

6. Graph the function for the given domain.
Step 3 Graph the ordered pairs.

7. Graph the function for the given domain. –2x + y = 3; D: {–5, –3, 1, 4}
Substitute the given value of the domain for x and find values of y. x
y =
(x, y)

8. Graph the function for the given domain.
Step 3 Graph the ordered pairs.

9. Graph the function for the given domain
Graph the function for the given domain. f(x) = x2 – 3; D: {–2, –1, 0, 1, 2}
Substitute the given value of the domain for x and find values of f(x). x
f(x) = x2 – 3
(x, f(x))

10. Graph the function for the given domain.
Step 3 Graph the ordered pairs.

11. Graph the function for the given domain
Graph the function for the given domain. f(x) = x2 + 2; D: {–3, –1, 0, 1, 3}
Substitute the given value of the domain for x and find values of f(x). x
f(x) = x2 + 2
(x, f(x))

12. Graph the function for the given domain.
Step 3 Graph the ordered pairs.