Test Practice Lessons 2.5-2.9

 A school has collected student enrollment data since it opened. The graph shows the number of students (y), in hundreds, enrolled at the school each year (x) the school has been open.

Which statement best describes the change in student enrollment shown in the graph?

• Enrollment has increased by approximately 1.3 students per year.

• Enrollment has increased by approximately 133 students per year.

• Enrollment has increased by approximately 400 students per year.

• Enrollment has increased by approximately 1,100 students per year.

Tags

CCSS.HSF.LE.B.5

The graph represents the prices, in dollars, of different numbers of pounds of regular bananas. The table below represents the prices, in dollars, of different numbers of pounds of organic bananas.

Which statement correctly compares the prices of regular bananas and organic bananas?

• Organic bananas cost $0.05 more per pound.

• Regular bananas cost $0.08 more per pound.

• Organic bananas cost $0.50 more per pound.

• Regular bananas cost $0.53 more per pound.

Fran buys used DVDs. She pays $2.75 for each DVD she buys. She graphs a line to show the total amount (y), in dollars, she pays to buy x used DVDs. Which equation correctly describes Fran's line?

Tags

CCSS.8.EE.B.5

The graph shows the relationship between the number of minutes Ray walks and the number of calories he burns.

Which equation can be used to find the number of calories (y) Ray burns when he walks for x minutes?

• y = x + 4

• y = x - 4

• y = 4x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The graph shows the number of gallons of gasoline, x, used to travel y miles in a car.

What is the equation of the line?

• y=x+25

• y=x+ 50

• y = 25x

• y = 50x

Tags

CCSS.8.EE.B.5

Luis is building a new deck and needs to have a slab of concrete poured. He knows the contractor charges an initial cost of $75 plus an additional $2.50 per square foot of concrete. Which equation can be used to determine the cost (y), in dollars, to pour a concrete slab with an area of x square feet?

• y = 2.5x + 75

• y = 7.5x + 2.5

• y=75x+2.5

• y = 77.5x

Tags

CCSS.6.EE.C.9

Amelia builds and sells birdhouses. The difference between the amount she sells each birdhouse for and the cost of supplies to build each birdhouse is $20. Amelia also spends $45 on tools to build birdhouses. Which equation can Amelia use to calculate the amount of money (m), in dollars, she earns from selling b birdhouses?

• b=20m - 45

• b=45m - 20

• m=20b - 45

• m = 45b - 20

Daisy has a bus pass with a balance of $30 on it. She uses the bus pass to pay for bus fares. The price for each bus fare is $1.50. Which equation represents the bus pass balance (y), in dollars, based on the number of bus fares, x, she pays for?

• y = 1.5x + 30

• y = 1.5x - 30

• y = 1.5x

• y = 30

Tags

CCSS.HSF-BF.A.1A

Ben currently has $70 in his trip fund. He makes $45 per week doing yard work for his neighbors. He keeps $18 of the $45 for weekly expenses. The remaining amount goes into his trip fund each week. Which function can be used to determine the amount of money (y), in dollars, that Ben has in his trip fund at the end of x weeks?

• y = 70+ 27x

• y = 52+ 45x

• y=45+52x

• y=27+70x

Tags

CCSS.HSF-BF.A.1A