Two-variable equations and tables

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Learn it An equation like y = 3x + 2 links two variables. Put in a value for x to find y. A point (x, y) is on the line if it makes the equation true.

Example: Does (2, 8) satisfy y = 3x + 2?

3 × 2 + 2 = 8.
Yes, (2, 8) works.

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