Understanding Absolute Value Equations

The video tutorial explains how to solve a complex absolute value equation involving nested absolute values. It begins by setting up the problem and analyzing the outer absolute value, leading to two possible equations. The tutorial then isolates and solves the inner absolute value, resulting in two solutions. Finally, the solutions are verified graphically using Desmos, confirming the correctness of the solutions.

What is the first step in solving an absolute value equation with nested absolute values?

• Solve the inner absolute value first

• Solve the outer absolute value first

• Ignore the inner absolute value

• Combine both absolute values into one

When breaking down the outer absolute value, what are the two possible equations you can form?

• The expression equals 0 or 10

• The expression equals 15 or -15

• The expression equals 5 or -5

• The expression equals 10 or -10

What should you do after isolating the absolute value in an equation?

• Add a constant to both sides

• Multiply both sides by a constant

• Set up two equations for the positive and negative cases

• Divide both sides by a constant

Why might an absolute value equation have no solutions?

• The absolute value is negative

• The equation is too complex

• The variables cancel each other out

• The constants are too large

Tags

CCSS.7.EE.B.4A

What are the solutions to the equation 2x - 3 = 15?

• x = 9 and x = 6

• x = 9 and x = -6

• x = 6 and x = -6

• x = 12 and x = -12

How do you verify the solutions to an absolute value equation graphically?

• By identifying the x-coordinates of the points of intersection

• By finding the slope of the line

• By checking the y-intercepts

• By calculating the area under the curve

What is the graphical representation of the left side of the equation?

• A parabola

• A straight line

• An absolute value graph

• A circle

What color is used to graph the left side of the equation in the video?

• Turquoise

• Pink

• Blue

• Red

What is the significance of the points of intersection in the graph?

• They represent the maximum values

• They confirm the solutions to the equation

• They indicate the slope of the graph

• They show where the graph crosses the y-axis

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What tool is suggested for graphing the equations?

• Microsoft Excel

• Desmos.com

• Google Sheets

• Wolfram Alpha

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6