Homework Help Overview
The problem involves determining the time it takes for a giraffe to reach a weight of 85 kg, based on a quadratic equation that models its weight over the first two years of life. The equation provided is W=(t^2)/4-t+68, where W is the weight in kilograms and t is the time in months since birth.
Discussion Character
- Mathematical reasoning, Problem interpretation, Assumption checking
Approaches and Questions Raised
- Participants discuss rearranging the quadratic equation to solve for t, with some expressing confusion about handling the fractional term. There are suggestions to eliminate fractions and to set the equation equal to zero for solving. Various methods for solving the quadratic equation are explored, including factoring and completing the square.
Discussion Status
The discussion is active, with participants providing guidance on manipulating the equation and exploring different solving techniques. There is recognition of the need to set the equation to zero before solving, and some participants express uncertainty about their approaches. Multiple interpretations of solving the equation are being explored without a clear consensus on the preferred method.
Contextual Notes
Participants mention the importance of reviewing textbook examples and concepts related to quadratic equations, indicating that some foundational knowledge may be lacking. There is also a note about the extraneous nature of negative solutions in the context of time.