Create equations in two or more variables and graph them with appropriate labels and scales.
Write an equation from a table and describe the graph features
Problem
Analyze the pattern in the displayed table. Use differences or ratios to classify the relationship, write its equation, and describe the graph's shape and direction.
The change pattern tells us which family fits before we write an equation. We’ll compare consecutive y-values over equal one-unit changes in x, use a constant first difference as the slope, take the output at x equals zero as the intercept, and use the slope’s sign to describe the graph’s direction.
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