Functions and Graphs

What is the rate of change for this graph?

Describe the meaning of the rate of change for this graph.

• for every 2 hours, the temp goes up by 1 degree

• the temp increases 2 degrees every hour

• the temp increases 1 degree every 2 hours

What does the slope represent in this situation?

• The sloth runs 1 feet in 3 minutes

• The sloth runs 3 feet in 1 minute

• The sloth runs fast

• The sloth runs 6 feet in 1 minute

What is the meaning of the y-intercept?

• The weight in the bucket increases by 1 pound per pound of sand.

• Before sand is put in the bucket, it weighs 1 pound.

• The starting weight of the sand is 1 pound.

• The weight in the bucket decreases by 1 pound per pound of sand.

Is the graph linear, exponential or neither?

• Linear

• Exponential

• Neither

The graph shows the candle's height (cm) as it burns (minutes).  What does the slope MEAN?

• The candle burns 1 cm every minute.

• The candle burns 2 cm every 2 minutes.

• The candle burns 2 cm every minute.

• The candle burns 1 cm every 2 minutes.

The graph shows the height (cm) of a candle as it burns, what does the y-intercept mean?

• Candle starts at 9 cm.

• Candle start at 4.5 cm

• Candle starts at 0 cm.

• The candle ends at 5 cm

What does f(1990)=214 mean in the context of the problem?

• In 1990 there were 214 million people with health insurance

• In 214, there were 1990 people with health insurance

• When there are 1990 people, the year is 214

• None of these

What is the BEST title for this graph?

• The Relationship between Time Spent Studying and Test Grades

• The effect of Time Spent Studying and Test Grades

• Time Spent Studying

• Test Grades