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Week 12: 10/27/2025
Week 12: 10/27/2025
For the student-produced response question below, solve the problem and record your answer in the Google Form accessed by clicking the acorn image to the right of the question. Your answer can be up to 5 characters for a positive answer and up to 6 characters (including the negative sign) for a negative answer. For a fraction that is too long (over 5 characters for positive, 6 characters for negative), type the decimal equivalent. For a decimal that is too long (over 5 characters for positive, 6 characters for negative), truncate it or round at the fourth digit. Type a mixed number as an improper fraction or its decimal equivalent. Don't include symbols or units such as a percent sign, comma, or dollar sign or in your typed answer. Check back next week for a video solution to the weekly posted question.
Student Responses
Student Responses
Video Solution
Video Solution
Perhaps the simplest solution here is to use Desmos to graph the given equation, which should appear as two points on the x-axis. However, Desmos will plot those points as two vertical lines, and the solutions at the x-axis are not interactive. To avoid this complication, we can rearrange our equation to make a function, use Desmos to graph it, then find the x-intercepts. As an extension, I explain how the square of a square root are only true inverses over positive numbers. As you will see in Algebra 2, the composition of these two functions is actually equivalent to the absolute value function. Duration: 15:33
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