What is the equation of the line that has a slope of 2 and passes through the point (1,3)?
Correct: A
Using the point-slope form of the line equation, y - y1 = m(x - x1), where m is the slope and (x1, y1) is the point on the line. Given m = 2 and (x1, y1) = (1,3), we substitute these values into the equation to get y - 3 = 2(x - 1). Simplifying this gives y - 3 = 2x - 2, which further simplifies to y = 2x + 1.