sistemi lineari

Risolvi il sistema:

• x = 1 y = 2

• x = 3 y = 2

• x = 2 y = 3

• x = 3/2 y = 1/2

Risolvi il sistema:

• x = 4/3 y = 0

• x = 1/2 y = 2/3

• x = 0 y = 4/3

• x = 3/2 y = 0

Qual'è la soluzione dell'equazione 
x=x

• 1
• indeterminata
• 0
• impossibile

Un’equazione che non ha soluzioni si dice:
.

• indeterminata
• determinata
• impossibile
• errata

Solve the system of equations.
x + 2y = -3
x - y = -12

• (-9, 3)
• (-7 ,5)
• (3, 15)
• (9, 6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations.
y = 4x+1
3x + 2y = 13

• (1, 5)
• (5, 1)
• (0.25, 2)
• ∅

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

Tags

CCSS.8.EE.C.8A

Solve for x and y:
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6