GraphsTypes of Graphs

Direct and Inverse Relationships

Line Graphs

• Line graphs show a changing relationship between variables (often over time)

Direct v. Indirect

Direct

• The more food my cat eats, the more she weighs.

• food = weight

Indirect

• The more exercise my cat gets, the less my cat weighs.

• exercise = weight

The more I practice archery the better I get.

practice = accuracy

The more distractions while I shoot, the lower my score.

distractions = score

Direct Indirect

The more Force I apply, the faster the ball will accelerate

force = acceleration

The more mass a ball has, the slower it will accelerate – if I use the same force

mass = acceleration

Direct Indirect

The less distance I go, the shorter time it takes to get there – at the same speed

distance = time

The faster I go (more speed) the quicker I will get there – using the same distance

speed = time

Direct Indirect

Bar Graphs

• A bar graph is useful for comparing information collected by counting.

Circle Graphs• Also called Pie Graphs• Circular Pie Represents the Total• Shows the different parts of a whole quantity.

The graph above represents the typical day of a teenager. Answer these questions: 1) What percent of the day is spent

watching TV? __________2) What percentage is spent sleeping? _________3) What activity takes up the least

amount of time? ________4) What activity takes up a quarter

of the day? ________ 5) What two activities take up 50%

of the day? __________ 6) What two activities take up 25%

of the day? __________

Homework page 20

• Make a circle graph showing your 5 favorite foods.

• Due: Friday, 8/22/14