Rate of Change for Linear Functions

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

Which statement describes the rate of change of the line?

• $20 each week

• $30 each week

• $25 each week

• $70 each week

Find the rate of change.

• -2 minutes per gallon

• -20 minutes per gallon

• -2 gallons per minute

• -20 gallons per minute

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

What is the rate of change of the linear function?

​ (a)   per hour worked

• $8.75

• $9.25

• $10.00

• $20.00

Mr. E has 25,000 hairs left on his head. Every day he loses 200 more hairs. Write an equation to find the number of hairs "y" Mr. E will have after "x" number of days.

• y = 200x - 25000

• y = 25000 - 200x

• y = 25000 x - 200

Which equation matches the table?

• y = 3x

• y = 5x

• y = x - 4

• y = x + 4

What type of function describes the story below?

Amy had $10 in her piggy bank. She added $5 each week.

• Linear because this has a constant rate of change.

• Exponential because this grows at a constant percent rate

• Quadratic because this is an area model.

Which function is linear?

• f(x)

• h(x)

• g(x)

What type of function is this and why?

• Linear Function ; common 1st difference

• Quadratic Function ; common 2nd difference

• Exponential Function; common ratio

• Not a Function