Graphing Functions
Scatter Plots and Trend Lines
Arithmetic Sequences
Vocabulary
Extra
100

Plot the first five points of the domain {1,2,3,4,5}:

y=x+4

(1,5),(2,6),(3,7),(4,8),(5,9)

100

How is a scatter plot that shows no Correlation is different from a scatter plot with negative correlation?

Answers will vary

100
What is a common difference?

When the terms of a sequence differ by the same nonzero number d.

100
What is a function?

a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the co-domain of the function.

100

A printer can print 8 pages per minute. Identify the dependent and independent variables for the situation. Write the equation in function notation.

Independent: minutes

Dependent: pages

f(m)=8m

200

Use the graph of the function f(x)=1/2*x-2 to find the value of f(x) when x=2.

-1

200

Does a trend line always pass through every point on a scatter plot? Explain your reasoning.

No; with given reasoning.

200

Find the given term of the arithmetic sequence.

5,10,15,20...;17th term

85

200

What are independent and dependent variables?

In a math equation, variables are the symbols or letters that represent numbers whose values can change. Variables can either be dependent or independent on other variables. Dependent variables rely on other variables to find their value, and independent variables do not rely on other variables to find their value.

200

For f(x)=3x-1 find f(x) when x=2.

f(2)=5

300

With the given function, determine whether or not the points lie on the graph

y=7x-2; (1,5),(2,10)

Yes;No

300

Name the type of correlation associated with the statement.

Time and the amount of miles traveled

Positive

300

Find the common difference for each arithmetic sequence.

112,105,98,91...

-7

300

What is a sequence?

A sequence is a list of numbers that may form a pattern

300

The function y=8x represents how many miles "y" a certain storm travels in x hours. Graph the function and estimate the number of miles the storm travels in 10.5h

84 miles

400

For the function give me three ordered pairs:

y=|x|+6

Answers will vary.
400

Is this correlation positive or negative:

The year a car was made and the total mileage

Negative

400

31st term: 12,7,2,-3....

-138

400

What is a scatter plot?

A graph with points plotted to show a possible relationship between two sets of data.


400

n-2.8 for n=5.8

3

500

Graph the functions y=|x| and y=-|x|. Describe how they are alike and different.

They are both V-shaped with one facing up and the other facing down.

500

Choose a scatter plot type that best describes this statement:

Will more people or fewer people buy an item if the price goes up?

Negative correlation since fewer people would purchase an increased item amount.

500

Is the sequence 5a-1, 3a-1, a-1, -a-1? If not, explain why not. If so, find the common difference, and the next three terms.

Yes. -2a; -3a-1,-5a-1,-7a-1

500

What is a correlation? What are the three forms of it and describe the relationship?

Describes a relationship between two sets of data.

Positive: both x and y increasing

Negative: X increases as Y decreases

No Correlation: There is no relation


500

Find the 83rd term:

5,-2,-9,-16

-569

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