Question

Write the equation of the line that passes through (1, 3) and has a slope of 2 in point-slope form.

A. y – 1 = 2(x – 3)
B. y – 3 = 2(x – 1)
C. x – 1 = 2(y – 3)
D. x – 3 = 2(y – 1)

Answer 1

The general line with slope m through (a,b) is

y - b = m(x - a)

Here we have m=2 and (a,b)=(1,3) so

y - 3 = 2(x - 1)

Answer: B