Comparing functions

given the following functions:
y =2x + 3  and   -6x +2y = 12
What is the sum of the slopes? 

• 8
• 5
• 1
• -4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

given the following functions:
y=3x - 4  and   3y=x - 12
What is the difference in the values of the y-intercepts?

• 8
• -16
• 4
• 0

Tags

CCSS.HSF-IF.C.7A

given the following functions:
y=5x - 15  and   3y=x + 15
what is the least value of y when x is 9?

• 8
• 30
• 24/5
• 12

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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 service ($38 vs. $40) is cheaper
• Nate’s service ($42 vs. $44) is cheaper
• Nate’s service ($38 vs. $40) is cheaper
• Beth's service ($42 vs. $44) is cheaper

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Which mode of transportation travels farther to get to school & by how much?

• bus, 2 miles more
• bike, 2 miles more
• bus, 6 miles more
• bike, 6 miles more

Tags

CCSS.8.EE.B.5