Linear Systems Using Matrices

Solve the system of equations: 

• ( -1, 6, 1)

• ( 1, 6, -1)

• None of these

• ( -6, -1, 1)

A customer at a store paid $64 for 3 large candles and 4 small candles. At the same store, a second customer paid $4 more than the first customer for 1 large candle and 8 small candles. The price of each large candle is the same, and the price of each small candle is the same. Which system of equations can be used to find the price in dollars of each large candle, x, and each small candle, y?

• 4y = 3x + 64

  8y = x + 68

• 4y = 3x + 64

  8y = x + 60

• 3x + 4y = 64

  x + 8y = 68

• 3x + 4y = 64

  x + 8y = 60

Tags

CCSS.HSA.CED.A.3

Solve the System of Equations using Augmented Matrices.

-3x +3y = 27

x + 2y = 3

• (5,-4)

• (5,4)

• (-5,4)

• (-5,-4)

Tags

CCSS.HSA.REI.C.9

Find the solution of the system given:

3x - y = 7

2x + y = 3

• (-1,2)

• (5,4)

• (4,5)

• (2,-1)

Tags

CCSS.HSA.REI.C.9

Solve the system.

2x + y = 3 and 4x + 4y = 8

Tags

CCSS.HSA.REI.C.9

3x + y = –21
x + y = –5
 
Answer:
x = –8
y = 3 

• True

• False

Tags

CCSS.HSA.REI.C.9

Tags

CCSS.HSA.REI.C.9

Tags

CCSS.HSA.REI.C.9

A system of equations is shown below.
3x + 6 = 4y
3x − 2y = 0
What is the x-value in the solution to the system?

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which ordered pair is the solution of the following system of equations? -x + y = -13 -8x - 4y = -8

• (5, 8)

• (5, -8)

• (-5, -18)

• (-5, 8)

Tags

CCSS.HSA.REI.C.9