Show:
Data Type
Variation
Variable Type
Slope
Correlation
100

How do we graph discrete data?

With a dotted line

100

Name one of the three ways we can tell if our relation has partial variation.

Table: has x = 0  and y = some number that's not 0

Graph: does not go through the origin

Equation: y = mx + b where b is not 0

100

What letter do we use for independent variables?

x

100

What direction does a positive slope go?

Up and to the right

100

How would you tell if a graph has a strong correlation?

All the dots are close to or on our line of best fit
200

How do we graph continuous data?

With a solid line.

200

Name one of the three ways we can tell if our relation has direct variation.

Table: has x = 0  and y = 0

Graph: goes through the origin

Equation: y = mx (b = 0)

200

You are doing chores to earn your allowance. For each chore you do, you earn $3.

What is the independent variable?

# chores

200

What direction does a negative slope go?

Down and to the right

200

How would you tell if a graph has a weak correlation?

All the points follow a general direction and are close-ish to our line of best fit

300

Is time an example of discrete or continuous data?

Continuous 

300

Which graph is direct and which is partial (Ms. Dufault will pull up photo).

Green = partial

Blue = direct

300

You are buying boxes of cookies at a bakery. Each box of cookies costs $4.

What is the dependent variable? 

Cost

300

What direction does a slope of 0 have?

Straight across left and right (horizontal)
300

How would you tell if a graph has no correlation?

Can't draw a line (no real relation because points all all over and a line wouldn't make sense!)

400

Is number of footballs discrete or continuous data? 

Discrete

400

Which equation is direct and which is partial?


C = 4n + 0

E = 12h + 20

C = 4n + 0 is direct

E = 12h + 20 is partial

400

Which side of the table does the independent variable go on?

The left (98% of the time!)

400

What direction does an undefined slope have?

Straight up and down

400

What is extrapolating?

When you have to look beyond your data to get information

500
If you were graphing the number of hours you worked versus money earned, would you say it is discrete or continuous data?

Continuous!

500

Which table is direct and which is partial (Ms. Dufault will pull up photo)?

Big Pine = partial

Hemlock = direct

500

What is dependent variable of c=40n+180?

c

500

What are all the different names we have for slope?

slope = m = (y2 - y1) / (x2 - x1) = rate of change = delta y / delta x = rise / run

500

If I am finding the temperature at following interpolating or extrapolating (Ms. Dufault will pull up a photo)?

Interpolation