Opening Exercise On your own or with a partner, write two fractions that are equivalent to 1/3, and use the slips of paper to create visual models to justify your response.
Consider the following rational expression: (2(𝑎−1)−2)/(6(𝑎−1)−3𝑎). Turn to your neighbor, and discuss the following: For what values of 𝑎 is the expression undefined? this section of the river, measured in gallons per minute?
Reduce the following rational expressions to lowest terms, and identify the values of the variable(s) that must be excluded to prevent division by zero.
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