Identify Solutions of an Equation

Solve the following equation:

9x + 7 − 5x = 4x − 7

• x = 7

• x = −7

• infinitely many solutions

• no solutions

What does it mean when an equation has infinitely many solutions?

• "To infinity and beyond"

• the equation is always TRUE when any value is substituted in for the variable

• the equation will NEVER be true when any value is substituted in for the variable

• only ONE solution will make the equation true

Tags

CCSS.8.EE.C.7A

• No

• Yes

Tags

CCSS.HSA.REI.C.9

• No

• Yes

(a)  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

(a)  

• The y-intercept for the yellow equation was graphed incorrectly.

• The y-intercept for the green equation was graphed incorrectly.

• The slope for the yellow equation was graphed incorrectly.

• The slope for the green equation was graphed incorrectly.

• The ordered pair is incorrect.

Tags

CCSS.8.EE.C.8B

An infinitely many solutions graph has:

• parallel lines

• same lines/overlapping lines

• intersecting lines

Tags

CCSS.8.EE.C.8A

Identify the type of solution.

• One solution

• No solution

• Infinitely many solutions

Tags

CCSS.8.EE.C.8A

Identify the type of solution.

• One solution

• No solution

• Infinitely many solutions

Tags

CCSS.8.EE.C.8B