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

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Graph: y=x+230

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Graph: y=x+230

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Graph: y=x+230

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Graph: y=x+230

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Graph: y=x+230

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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?

Graphing a Function Rule10/22/2018

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!

Try graphing the function rule: y = ½ x -1x Function Rule y

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!

Tonight’s Homework

Page 257 #18-20, 22-23, 29-33