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Welcome to class!
Join PearDeck
You will need your calculator for today’s lesson
Complete 10 domain and range practice problems HERE
Announcements
● Unit 4 Test Date → 10/29/2018 (next Monday) → this is a Quarter 2 grade
● Please double check your grades in PowerSchool and let me know if you think there are any errors! We are nearing the end of Quarter 1.
Graph: y=x+230
-40 40
-30
Graph: y=x+230
-40 40
-30
Graph: y=x+230
-40 40
-30
Graph: y=x+230
-40 40
-30
Graph: y=x+230
-40 40
-30
Graph: y=x+230
-40 40
-30
Let’s review what you should know so far...
● Using Graphs to Relate Two Quantities○ Independent vs. Dependent Variable○ Domain vs. Range
● Patterns and Linear Functions○ How do you know if it’s a function?○ How do you know if it’s a linear function?
● Patterns and Nonlinear Functions○ How do you know if it’s a function?○ How do you know if it’s a nonlinear function?
Right now, the easiest way to graph any function is to make and x and y chart, then graph the points!
I know that there are other ways, and I am excited to teach them to you later!
x Function Rule y
And that’s all there really is to it… for now :)
Make an x and y chart, get some points, and make the graph!
BTW… we can graph nonlinear functions the same way we graph linear functions! Just make another x and y chart!
Continuous vs. Discrete Graphs
Continuous - a graph that is unbroken
Discrete - a graph composed of distinct, isolated points
In what real life situations would we need a continuous graph? Talk at your table, then write a response here:
In what real life situations would we need a discrete graph? Talk at your table, then write a response here:
In what real life situations would we need a continuous vs. discrete graph? Examples
Continuous:
● Money made per hour babysitting
● Plant growth per day
Discrete:
● Cost of beans per can● Money made per car
wash
When you walk out of the door today, you should be able to...● Graph a linear function● Graph a nonlinear function● Determine if the graph should be continuous or discrete
Drag your dot to how you are feeling:
Keep going, I understand I’m a little confused Stop, I need help!