I am also on the next question, i have solved a few and struggling with others?

2. obtain dy/dx for the following functions using the 'direct rule'

a) y=2.5x^2

=5x

b) y=x^2/2.5

=0.8x

c) y=2.5x - 2.5

=-2.5x^0

d)y= (2.5)(SQUAREROOT OF x)

=1.25x

e)y=x^2.5

=2.5^1.5

f)y=2.5/x^2 HELP

g)y=(^2.5 SQUARE ROOT OF x) HELP

h)y=2.5x^4 - (x^3/2.5) - (x/2.5) + 2.5 SO FAR

=10x^3 - 1.2x^2 - 0.4x^0 + 2.5

I)y=2.5x{(x^2)-(1)} HELP

J) y=(x^3 - 2.5x^2) / (2.5) (SQUARE ROOT OF x) HELP