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What is the equation of a line with a slope of 2 and passes through the point (5,21)?

  1. y = 5x + 21

  2. y = 2x + 21

  3. y = 5x - 21

  4. y = 2x - 21

The correct answer is: y = 2x + 21

A This equation does not have a slope of 2, as the coefficient of x is 5, not 2. C: This equation does not have a y-intercept of 21, as the constant term is -21, not 21. D: This equation does not have both a slope of 2 and a y-intercept of 21. The constant term is -21, not 21.