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