Problem

Find, in general form, the equation of the line which has: a. a gradient

-4

and passes through $(1, 2) b. b gradient

\frac{1}{2}

and passes through $(3, -5) c. c gradient

-\frac{5}{3}

and passes through $(-2, 6) d. d gradient

\frac{7}{6}

and passes through

(-1, -4)