IM 8.4.4 Practice: More Balanced Moves
Mai and Tyler work on the equation. together. Mai's solution is and Tyler's is . Here is their work. Do you agree with their solutions?
Mai: Tyler:
Explain your reasoning.
Solve
Describe what is being done in each step while solving the equation.
Starting equation: Step 1:
Step 2:
Step 3:
Step 4:
Andre solved an equation, but when he checked his answer he saw his solution was incorrect. He knows he made a mistake, but he can’t find it. Where is Andre’s mistake?
What is the solution to the equation?
Choose the equation that has solutions and .
A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, for each length of the first piece, .
How long is the ribbon?
Explain how you know.
What is the slope of the line?
Explain what the slope of the line represents and why it fits the story.