Solving system of linear equations

What is 21x - 7y = -49 in STANDARD FORM

• y = -7x -3

• y = -3x -7

• y = 3x + 7

• y = 7x + 3

What is 15x - 3y = 30 in STANDARD FORM

• y = -3x + 30

• y = -3x - 5

• y = 5x - 10

• y = 15x + 5

Where do these lines intersect

• (1, -3)

• (-3, 1)

• (3, 1)

• (1, 3)

Tags

CCSS.8.EE.C.8B

Where do they intersect

-8x + y = 1

-6x + y = 3

• (1, 9)

• (4, 14)

• (0, 1)

• (2, 4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Where do these lines intersect

• (-8, -6)

• (-6, -8)

• (8, -6)

• (-8, 6)

Tags

CCSS.8.EE.C.8B

Where do these lines intersect

• No where

• (0, 0)

• (0, 3)

• (4, 3)

Tags

CCSS.8.EE.C.8B

Solve the system of linear equations below.

x = -3y - 8

x - 2y = -3

• (5, -1)

• (-5, 1)

• (-5,-1)

• (1,-5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Where do these two lines intersect?

• No solution
• (-2, 3)
• (3, -2)
• (2, 3)

Tags

CCSS.8.EE.C.8A

Where do these lines intersect

5x - y = 13

x + 2y = 7

• (-3,-2)

• (-2,-3)

• (2,3)

• (3,2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Where do these lines intersect

4x - 3y = -7

3x - 4y = -14

• (2,-5)

• (-2,-5)

• (2,5)

• (-2,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6