Writing Systems of Inequalities from Graphs

Mr. Allen introduces systems of inequalities, focusing on writing inequalities from given graphs. He explains how to determine the slope and y-intercept for both solid and dashed lines, and how to decide whether to shade above or below the line. The video covers writing inequalities for horizontal and vertical lines, emphasizing the importance of understanding slope-intercept form. Mr. Allen concludes with encouragement and a call to action for viewers to like and subscribe.

What is the y-intercept of the first inequality's solid line?

• 2

• 4

• 1

• 3

Tags

CCSS.HSA.REI.D.12

What is the slope of the first inequality's solid line?

• 1

• 2

• 3

• 4

Tags

CCSS.HSA.REI.D.12

For the first inequality, are we shading above or below the line?

• Neither

• Below

• Both

• Above

Tags

CCSS.HSA.REI.D.12

What is the y-intercept of the second inequality's dashed line?

• 3

• 2

• 1

• 4

Tags

CCSS.HSA.REI.D.12

What is the slope of the second inequality's dashed line?

• -1/3

• 1/3

• -3

• 3

Tags

CCSS.HSA.REI.D.12

For the second inequality, are we shading above or below the line?

• Both

• Neither

• Above

• Below

Tags

CCSS.HSA.REI.D.12

What is the y-value for the third inequality's horizontal line?

• -3

• -1

• -2

• -4

Tags

CCSS.HSA.REI.D.12

For the third inequality, are we shading above or below the line?

• Neither

• Both

• Below

• Above

Tags

CCSS.HSA.REI.D.12

What is the slope of the fourth inequality's vertical line?

• 2/3

• 3/2

• -3/2

• -2/3

For the fourth inequality, are we shading above or below the line?

• Above

• Below

• Neither

• Both

Tags

CCSS.HSA.REI.D.12