Matematica

a)

m = -3*2/3 = -2

y = mx = -2x

b)

m = 2

y = mx = 2x

c)

m = 5/4*3/10 = 3/8

y = mx = 3x/8

d)

m = -3/4*/6 = -1/8

y = mx =-x/8