Systems of Equations - Graphing NC.8.EE.8

• (3,-2)

• (-4.5, -4.5)

• (0,3)

• (-3, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• -3

• -1/2

• 1/4

• 4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which system has a solution of (-1, 3)?

• y = -6x - 3

  y = -x + 2

• y = -3x + 1

  y = 2x - 4

• y = 3

  y = -x + 1

• y = -4x - 2

  y = x + 3

Tags

CCSS.HSA.REI.C.9

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Chase is comparing the cost of cell phone services. The phone he wants costs $40 at Campbell Cellular, and the unlimited calling plan through their carrier would cost $3 per day. At Thornton Electronics, Chase could purchase the same phone for $60 and also get an unlimited calling plan for $1 per day. After some number of days, the two options would end up having the same total cost. What would the total cost be?

(a)  

Two political activists, Janelle and Connor, have a friendly bet to see who can get the most signatures on a petition. So far, Janelle has collected 35 signatures and Connor has collected 25 signatures. Janelle is averaging 1 new signature per minute, while Connor is managing to collect an average of 2 signatures per minute. Assuming this trend continues, they will end up in a tie. How many signatures will they have when the tie occurs?

(a)  

Tags

CCSS.8.EE.C.8C

Mrs. Smith is a dance teacher whose students are going to have a recital. She is comparing two companies' prices for filming the recital and producing DVDs. Jamal's Productions charges $10 per DVD, plus $100 to come and film the recital. Greenwood Media charges $50 to film, plus $12 per DVD. To decide which company to use, Mrs. Smith determines the number of DVDs that would make the two options equivalent in terms of cost. How many DVDs would that be?

• $350

• 25 DVDs

• $25

• 350 DVDs