MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
We are sometimes given an expression with a variable and asked to evaluate that expression for given values of the variable. Here we practice this substitution with absolute value expressions, remembering that absolute value means a distance away from zero. As an organizational strategy, try writing one step per line.
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