A line passes through the points (2, 5) and (6, 13). What is the y-intercept of this line?

✓ Correct Answer: Option C

Slope (m) = (13 - 5) / (6 - 2) = 8 / 4 = 2. Using point-slope form y - y1 = m(x - x1): y - 5 = 2(x - 2) => y = 2x - 4 + 5 => y = 2x + 1. The y-intercept is 1.