Compare Functions at Different Values

Pedro and Naomi are hiking down a hill. The equation and table shows their elevation (ft) as a function of time (h). Who has the greater elevation at h=0?

• Pedro: 4,200 ft

• Pedro: 800 ft

• Naomi: 3,500 ft

• Naomi: 600 ft

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Pedro and Naomi are hiking down a hill. The equation and table shows their elevation (ft) as a function of time (h). What is the difference in their initial values?

• 700 ft

• 800 ft

• 900ft

• 600 ft

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Pedro and Naomi are hiking down a hill. The equation and table shows their elevation (ft) as a function of time (h). Who hikes down at a greater rate?

• Pedro: 800 ft/hour

• Pedro: 420 ft

• Naomi: 350 ft/hour

• Naomi: 600 ft/hour

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

A internet store has a special sale for sneakers. The price decreases at a steady rate as shown in the table. A nearby store always charges $45 for the same sneakers.

What is the difference in price on Day 1?

• $20

• $17

• $14

• $11

Tags

CCSS.HSF-LE.A.1B

A internet store has a special sale for sneakers. The price decreases at a steady rate as shown in the table. A nearby store always charges $45 for the same sneakers.

What is the difference in price on Day 4?

• $20

• $17

• $14

• $11

Tags

CCSS.HSF.BF.A.2

A internet store has a special sale for sneakers. The price decreases at a steady rate as shown in the table. A nearby store always charges $45 for the same sneakers.

What day will the internet store price be less than the near by store?

• Day 5

• Day 6

• Day 7

• Day 8

A fashion designer checks the price for fabric. Manufacturer A charges $7.50 per yard. The graph shows the price that Manufacturer B charges.

Which manufacturer charges more per yard?

• They both charge the same rate.

• Manufacturer A charges more.

• Manufacturer B charges more.

• Not enough information.

The cost of Nate’s service is described by y = 4x + 6. The table shows the cost of Beth’s service. Which service is cheaper for 8 movies in one month?

• Beth's $38 service cheaper than Nate’s $40 service.

• Nate’s $42 service is cheaper than Beth’s $44 service.

• Nate’s $38 service is cheaper than Beth’s $40 service.

• Beth's $42 service is cheaper than Nate’s $44 service.

What is a possible scenario for the given table?

• You have $8 and get $5 more each day!

• You have $16 and get $2 more each day!

• You have $2 and get $6 more each day!

• You have $6 and get $2 more each day!

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 initial value in this situation?

Mathematical Equivalence

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