Graphing Checklist:• Pick out independent & dependent variable• Using as much of the page as possible darken axes• Label axes with variable and units• Pick a scale for each axes that spreads out the data as

much as possible (x & y axis may have different scales)• Mark scale on axes• Plot points carefully• Insert best fit line or curve• If data is linear, calculate slope and equation of best fit

line• Insert key if necessary• Number and title graph, title is y variable vs. x variable

Graph the following data in your lab book.

# of Pizzas Cost x-axis: each box is worth 1

5 49.75 y-axis: each box is worth 7

6 58.78 76.6

12 112.417 157.1522 201.928 255.635 318.25

dist

ance

(m)

time (sec)

distance vs time for Person WalkingDescribe each persons motion

What does the y-intercept tell about each person?

What is the general equation of a line?

Write the equation of the line for each person walking.

How far away from his/her start was person A after 20 seconds?

How far away from his/her start was person B after 7.5 seconds?

Person APerson B

dist

ance

(m)

time (sec)

distance vs time for Person WalkingDescribe each persons motion

What does the y-intercept tell about each person?

What is the general equation of a line?

Write the equation of the line for each person walking.

How far away from his/her start was person A after 20 seconds?

How far away from his/her start was person B after 7.5 seconds?

Person APerson B

distance (m)

time

(sec

)time vs. distance for Cars

Describe each cars motion

What does the y-intercept tell about each car?

What is the general equation of a line?

Write the equation of the line for each car.

How far away from the start was car A after 50 seconds?

How far away from the start was car B after 6.2 seconds?

Car ACar B

distance (m)

time

(sec

)time vs. distance for Cars

Describe each cars motion

What does the y-intercept tell about each car?

What is the general equation of a line?

Write the equation of the line for each car.

How far away from the start was car A after 50 seconds?

How far away from the start was car B after 6.2 seconds?

Car ACar B

Hours studying

Mat

h te

st s

core

Math test score vs. hours studying Hours Studying 8 2 7 4 6 1Math Test Score 100 25 88 50 75 13

Hours studying

Mat

h te

st s

core

Math test score vs. hours studying

What does the y-intercept tell about the data?

What test score can be expected if a person studies for 3 hours?

If a person wants a score of 67 how many hours of studying are needed?

Hours Studying 8 2 7 4 6 1Math Test Score 100 25 88 50 75 13

Describe the relationship between math test scores and hours studying.