DA #3 REDO 8.4AB,8.5GHI,8.9A

Which situations could represent a non-proportional relationship? Choose 3 correct answers.

• A plumber charges $45 an hour plus a $50 service fee.

• The amount an employee who makes $10 an hour earns in h hours.

• TruFit gym memberships are $25 a month plus a $15 enrollment fee.

• The cost of purchasing a bag of grapes for $2.50 per pound.

• The weight in x weeks of a kitten that gains 1 pound per week if it weighed 2 pounds at birth.

Tags

CCSS.8.EE.B.5

Which set of ordered pairs represents y as a function of x?

• {(2,-2), (1,5), (-2,2), (1, -3), (8,-1)}

• {(3,-1), (7,1), (-6,-1), (9,1), (2, -1)}

• {(6,8), (5,2), (-2,-5), (1,-3), (-2,9)}

• {(-3,1), (6,3), (-3,2), (-2,-2), (1,-1)}

Tags

CCSS.8.F.A.1

The table shows y as a function of x. Which ordered pairs also belong to the function? Select TWO correct answers.

• (3,1)

• (5,7)

• (7,9)

• (8,6)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

At what distance do both Taxis charge the same amount?

• 20 miles

• 15 miles

• 10 miles

• 5 miles

Tags

CCSS.8.EE.C.8C

Which equation can be used to describe the relationship between x and y shown in the graph below?

• y = $\frac{1}{3}$ x + 4

• y = 4x + $\frac{1}{3}$

• y = - $\frac{1}{3}$ x + 4

• y = -4x + $\frac{1}{3}$

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

John bought a new computer. He made an initial payment of $100 to the store, and he will pay $45 each month until the computer is paid off. Which equation represents the relationship between m, the number of monthly payments John has to make, and t, the total amount that John has to pay to the store?

• t = 100m + 45

• m = 45t + 100

• t = 45m + 100

• m = 100t + 45

Tags

CCSS.6.EE.C.9

The line on the coordinate grid includes the hypotenuse of right triangle ABC.

Right Triangle DEF is similar to right triangle ABC. Vertex F is at (3,30). The slopes of the hypotenuses of the two right triangles are equal.

Which ordered pair could be the coordinates of vertex E?

• (4,40)

• (5,50)

• (4,70)

• (1,30)

Tags

CCSS.HSG.SRT.A.2

A bus travels 25 miles in 30 minutes. Which graph has a slope that best represents the number of miles per minute the bus travels?

• 
• 
• 
• 

Tags

CCSS.8.EE.B.5