Originally Posted by

**Paymemoney** Hi

I few question i am having trouble with:

1)P and Q lie on the curve $\displaystyle y=x^3$. The x coordinates of P and Q are 2 and (2+h) respectively. The gradient of chord PQ is:

A.$\displaystyle \frac{h^3-8}{h-2}$

B.$\displaystyle 12+6h$

C.12

D.$\displaystyle \frac{(2+h)^3-8}{h}$

E.$\displaystyle 12+6h+h^2$

2)The equation $\displaystyle logx=y(log3)+1$ is equivalent to the equation:

A.$\displaystyle x=10.3^y$

B.$\displaystyle x=30^y$

C.$\displaystyle x=3^y+10$

D.$\displaystyle x=y^3+10$

E.$\displaystyle x=10y^3$

3)If the angle between the lines 2y=8x+10 and 3x-6y=22 is $\displaystyle \theta$, then $\displaystyle tan\theta$ is best approximated by:

A)1.17 B)1.40 C)2 D)0.86 E)1

P.S