Rate of Change and Initial Value

What is Bob's rate of change from 0 seconds to 50 seconds?  BE SURE TO SIMPLIFY!!!

• 100 meters per 50 seconds

• 5 meters per second

• 2 meters per second

• 20 meters per second

The table shows the number of inches of snow on the ground as a function of time after noon.

• 2.5

• Rate of change

• 1

• Initial value

• 6

What is the rate of change?

What is Billy's rate from 100 to 120 seconds?

• Lightning fast!

• Super speedy!

• 20 meters per second

• 0 meters per second

Who has the greater rate of change?

• They have the same rate of change.

Find the rate of change.

• -2 minutes per gallon

• -20 minutes per gallon

• -2 gallons per minute

• -20 gallons per minute

What is the initial value?

• -3

• 0

• 3

• 20

What is the initial value in this table?

• -2

• 2

• 6

• 14

What is the initial value in this equation?
y=8x+6

• 8

• 6

Tim bought a new phone.  He paid $125 on the day of purchase, then $50 per month until it was paid off. What is the rate of change in this situation?

• 50

• 125