algebra
posted by <3 .
write an equation in slopeintercept form of the line that passes through the given points.
a. (6,1), (3,7)
b. (2/3,4), (6, 1/3)
write an equation in pointslope form of the line that passes through the given poitns.
c. (2,5), (4,3)
d. (1/2,1), (2/3,6)
plz show me how to do these.. thnxxxx

a. y = 8x/3 + 1
b. y = 13x/20 + 107/30
c. y + 3 = (4/3)(x + 2)
d. y + 1 = 6x + 3
are these correct? 
Equation that represents the line that passes through the points (3,7)and (3,3)