8.4B, 8.5I Assessment

Jon drinks 10 sodas a week. Which graph correctly represents the unit rate for this proportional relationship?

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Which linear equation models the relationship shown on the graph?

• y=2x

• y=x+2

• y=2x+1

• y=0.5x+2

Which scenario best matches the proportional relationship shown on the graph?

• Aaron spent $30 to buy 3 DVDs.

• Dakota earns $15 for each dog she walks.

• A customer can buy 5 exotic fish for $30 at a pet shop.

• A student can complete 2 math assignments in 60 minutes.

Philip paid an $80 flat fee, plus $0.08 per mile, to rent a car for one week. If x represents the number of miles he drives, which linear equation could Philip use to determine y, the total cost of renting the car?

• y=88x

• y=x+80.08

• y=80x+0.08

• y=0.08x+80

Which scenario best matches the proportional relationship shown on the graph?

• Tyrone paid $18 for 5 trading cards.

• A customer could buy 3 candy bars for $1.

• Billy earned 5 points for every 2 sales he made.

• Cheyenne earned $6 for each bracelet she sold.

Which linear equation models the relationship shown in the table?

• y=25x

• y=5x+10

• y=10x+25

• y=25x+10

What is the slope of the linear function shown on the graph?

When summer began, David could swim 35 yards without stopping to rest. He practiced and increased this distance by 15 yards each week. If x represents the number of weeks, which linear equation could David use to determine y, the total distance he could swim without stopping to rest?

• y=x+50

• y=x+35

• y=15x+35

• y=35x+15

What is the slope of the linear function shown on the graph?

Which linear equation models the relationship shown on the graph?

• y=2x+3

• y=2x+1