Xavier is attempting to recreate a problem his teacher showed him in class. To do so, he creates the table. x y 1 3 2 ? He remembers that the slope of the line through the ordered pairs in the table was 4 What is the missing y -value in the table?

The slope between (1, 3) and (2, y) is the change in y divided by the change in x: (y − 3) ÷ (2 − 1). Since the slope is 4 and the x-values differ by 1, y must be 3 + 4 = 7. The missing value is 7, choice C.

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