Ms.Polito's Module 3 Jeopardyy

Functions

100

If you are given a relation as a list of points, how can you determine if they represent a function?

If an x value does not repeat.

200

Find f(5) if f(x)=x² - 3

22

300

1)What is the VLT used for? 

2)How do you use this test?

*Be sure to answer BOTH parts!!

1) Used to test if a graph represents a function.

2) When you draw a vertical line at any point on a graph, the line can only touch the graph at one point in order to be a function. 

400

Find f(-7) if f(x)=x³+x+2

-348

500

Name as many types of functions as you can!

*The group that lists the most will get the points!

Linear, Exponential, Absolute Value, Quadratic

Transformations

100

Describe the transformations from the parent function.

g(x)=|x|+2

Horizontal Shift Up 2 

200

Describe the difference between a horizontal shift and a vertical shift.

Horizontal is along the x-axis (left/right).

Vertical is along the y-axis (up/down).

300

If there exists a function f(x)=1/2|x| 

What changed from the original?

The function would get wider than the parent function.

400

Describe what a parent function is. 

The parent function is the original graph used to describe transformations of other functions.

500

Describe all transformations from the parent function.

f(x)=-5|x - 7|+3

Flipped, Narrower, Right 7, Up 3

Correlation

100

Describe r = 0.9

Strong positive

200

What does a correlation coefficient of r= -0.42 mean for the model?

Moderate Negative Relationship

300

r = - 0.2

weak negative

400

r = 0.5

moderate positive

500

What's another name for correlation?

relationship

Equations

100

2x - 4 = 10 Solve

x = 7

200

-x + 7 = 18 Solve

x = - 11

300

5(x + 3) = 2x + 5 Solve

x = -10/3

400

-x + 6 = 7x -14 Solve 

x = 5/2

500

-2(2x - 5) = 5(x + 3) Solve

x = -5/9