Solve linear systems graphically 2-3 and 2-4

Solve the following systems using a calculator

y1 = 2x + 15

y2 = -1/3 x + 1

• -6,3

• 6,3

• 3,6

• -3, 6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

2x + 3y = 6 and 4x + 6y = 12

• 2,3

• 3,2

• infinitely many solutions

• no solution

Tags

CCSS.8.EE.C.8B

x + 3y = -6 and 2x - 5y = 7

• 1, 2

• -1, -2

• -0.818, -1.727

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

8x +3y = -5 and 10x + 6y = -13

• 0.5, -3

• -0.5, 3

• 3, 0.5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

2x + 3y = 4 and 8x + 12y = -12

• infinitely many solutions

• NO Solution

Tags

CCSS.8.EE.C.8B

2x - 5y = 13 and 6x + 3y = 10

• -2.4, 1.6

• 1.6, 2.4

• 2.4, -1.6

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The equation of two lines are 4x - 5y = - 15 and y = 4/5 x - 6, which of following describes their point of intersection

• 5, -2

• -5, 1

• 10, -5

• no intersection

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Look at the following systems of equations:

3x - 2y = 14

6x - 2y = 32

which of the following is a description of the solution for this system?

• infinite number

• No solution

• one solution

• two soluions

Tags

CCSS.8.EE.C.8B

How many solutions does the systems of equations have

x - y = 5

-3x + 3y = 6

• none

• one

• two

Tags

CCSS.8.EE.C.8B

solve the system of equations by substitution

x - 2y = 5

4x + 3y = 9

• 3, -1

• -1, 3

• 2, 4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6