Functions discrete and continuous

In discrete functions, the x-values...

• Can be all numbers
• Can only be whole numbers
• Can only be decimals

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

In continuous functions, the x-values...

• Can be all numbers
• Can only be whole numbers
• Can only be decimals

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

CCSS.HSF.IF.A.2

When graphing a discrete function...

• Do not connect the dots
• Connect the dots
• You can't graph discrete functions
• There is no such thing as a discrete function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

When graphing a continuous function...

• Do not connect the dots
• Connect the dots
• You can't graph continuous functions
• There is no such thing as a continuous function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

You are driving to Florida to escape the upcoming snow. You are driving 70 miles per hour and have already driven 35 miles. Using y=70x+35 for the situation, what does x represent?

• miles
• hours

Tags

CCSS.HSF.LE.B.5

You are driving to Florida to escape the upcoming snow. You are driving 70 miles per hour and have already driven 35 miles. Using y=70x+35 for the situation, determine if this graph will be discrete or continuous.

• Discrete
• Continuous

Tags

CCSS.8.EE.B.5

Complete the function table for y = -2x + 1.

• -2(2) + 1; -2
• -2(2) + 1; -3
• -2(2) + 1; -1
• -2(2) + 1; 0

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

This graph represents which function?

• y = -2x
• y = 2x
• y = -2x + 1
• y = 2x - 1

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The grocery store sells cantaloupes for $4.50 per pound.  Write a function to represent the cost, c, for the number of pounds of cantaloupes bought, p.

• c = 45p
• c = 4.5p
• p = 4.5c
• p = 45c

Tags

CCSS.HSF-BF.A.1A

The grocery store sells cantaloupes for $4.50 per pound.  Is the function continuous or discrete?  Explain.

• continuous; you cannot have a fraction of a pound when you weigh cantaloupes
• continuous; you can have a fraction of a pound when you weigh cantaloupes
• discrete; you cannot have a fraction of a pound when you weigh cantaloupes
• discrete; you can have a fraction of a pound when you weigh cantaloupes

Tags

CCSS.8.EE.B.5