Solving pairs of linear equations in two variables

 $y=2x-3;\ 2x+4y\ =\ 8$  

Determine if graphs of the equations are parallel, perpendicular, coincide, or intersecting but not perpendicular lines.

• parallel

• perpendicular

• coincide

• intersecting but not perpendicular

Tags

CCSS.8.EE.C.8B

• perpendicular

• parallel

• neither

Tags

CCSS.8.EE.C.8B

What is the solution to

y = 6

y = 1

• (0, 0)

• (6, 1)

• No solution

• Infinity many solutions

Tags

CCSS.8.EE.C.8B

y = 1.2x - 0.2
y = 3.8x - 0.2

• One

  Solution

• No

  Solution

• Infinitely Many

  Solutions

Tags

CCSS.8.EE.C.8B

• (2, 1) only

• (3, 6) only 

• Infinitely many solutions

• No solution

Tags

CCSS.8.EE.C.8B

If the coefficients are different, the equation will have ______ solution.

• no

• one

• infinite

Tags

CCSS.8.EE.C.8B

• Infinitely Many Solutions

• (0, 8)

• No Solution

• (-8, 0)

Tags

CCSS.8.EE.C.8B

• perpendicular

• parallel

• neither

Tags

CCSS.8.EE.C.8B

Which of the following statements is/are true?

i. A system of linear equations cannot have more than one solution.

ii. In a system of two linear equations, if the coefficients are equal, the system has no solution.

iii. If the graphs of the system of two linear equations coincide, it means the system has infinitely many solutions.

• iii only

• i and ii

• all of them

• i and iii

Tags

CCSS.8.EE.C.8B

Are 2x + 2y = 20 and y= -x+20 the same line?

• Yes

• No

Tags

CCSS.8.EE.C.8B