What is the equation in point−slope form of the line passing through (1, 2) and (2, 5)?
a. (y-2)=-3(x-1)
b. (y-2)=3(x-1)
c.(y-1)=-3(x-2)
d. (y+2)=3(x=1)

Indicate the equation of the given line in standard form. the line containing the longer diagonal of a quadrilateral whose vertices are a (2, 2), b(-2, -2), c(1, -1), and d(6, 4).