Defining Functions through Graphs, Tables, and Ordered Pairs

Multiple Choice

BELL-RINGER QUESTION #1

What is the meaning of the dilation rule (x, y) → (3x, 3y)?

NOTE: The dilation rule is the scale factor that is used for enlargement and reduction.

• All vertices will be reduced by the scale factor to be 3 times smaller.

• All vertices will be enlarged by the scale factor to be 3 times larger.

• Only one point on the graph will be enlarged by the scale factor.

• The vertices will be moved 3 units right and 3 units left.

Multiple Choice

BELL-RINGER QUESTION #2

A rectangle is graphed on a coordinate plane. Which transformation will result in a rectangle that is NOT congruent to the original rectangle?

• A dilation by a scale factor of 3.

• A rotation about the origin of 180°.

• A translation 5 units right and 7 units down.

• A reflection across the

  y-axis.

"x's should NOT repeat - that is not a functioning relationship!"

​

​VERTICAL LINE TEST OF GRAPHS

Multiple Choice

GUIDED PRACTICE - CHECK FOR UNDERSTANDING

Which graph represents y as a function of x?

IF YOU DO NOT UNDERSTAND, PLEASE RAISE YOUR HAND BEFORE TIME IS UP!!!

Multiple Select

PARTNER TURN-AND-TALK

1. With your partner, determine which of the following graphs represents a function using the vertical line test.

SELECT ALL CHOICES THAT APPLY!

Multiple Select

INDEPENDENT PRACTICE

2. Which of the following graphs provided DO NOT represent a function.

SELECT ALL CHOICES THAT APPLY!

Multiple Select

PARTNER PRACTICE

3. Determine which of the following tables represents a function of input/output values.

SELECT ALL CHOICES THAT APPLY!

Multiple Choice

PARTNER PRACTICE

4. Determine which of the following set of ordered pairs represents y- as a function of x-values.

• {(9, 8), (-1, 7),

  (-1, -9), (3, -1)}

• {(9, -5), (4, 6),

  (9, 8), (-6, 9)}

• {(-8, 0), (-8, 2),

  (5, -7), (-2, -9)}

• {(2, 9), (-4, -6),

  (9, -6), (0, 9)}

Dropdown

Exit Ticket - TEK 8.5G

Which set of ordered pairs represents y as a function of x?​ ​

Select answer