Lesson on Domain and Range from a Graph

Presentation

•

Mathematics

•

9th Grade

•

Hard

Joseph Anderson

FREE Resource

5 Slides • 3 Questions

Domain and Range

https://youtu.be/VUTXsPFx-qQ

Continuous Graphs

(solid lines)

*Least to Greatest

* and ≤ or ≥

* < or >

* -∞ <--> +∞ means All Real Numbers

Graphs

Discrete Graphs

(dashed lines)

* {use list of #'s}

Repeating numbers are only shown once.

Diagrams

(1,2), (2,2), (3,3), (4,3)

*Least to Greatest

DIXI ROYD

Domain

Input

X-Values

Independent

R O Y D

Dependent

Y- Values

Output

Range

D I X I

Multiple Choice

A part of quadratic function f is graphed on the grid. What is the domain of the part of the function shown?

All real numbers greater than or equal to −1

All real numbers greater than or equal to 1

All real numbers

All real numbers greater than or equal to −1 and less than or equal to 5

Multiple Choice

What is the range of the function for this situation?

0 ≤ y ≤ 9

0 ≤ x ≤ 9

0 ≤ y ≤ 80

0 ≤ x ≤ 80

Multiple Choice

A function is shown.

$f(x)=\frac{2}{5}(x−25)^2+13$

What is the range of the function?

All real numbers

All real numbers greater than or equal to 25

All real numbers greater than or equal to 10

All real numbers greater than or equal to 13

Domain and Range

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