Part II: (2 point each) Write the short answer only in the space provided. 1. Let f(x)=2x+1 and (f\circ g)(x)=3x-1 , then g(x)=\_

2. If f(x)=\frac{2x-1}{x-5} then f^{-1}(x)=\_

3. The amplitude and frequency of the function f(x)=\frac{1}{2}sin~3x are respectively and

4. #1-( is a root of p(x)=x^{2}-2x+2 , then the remaining root of p(x)=\_

he (-1.3) be the mid point of a line segment PQ. if the coordinate of P is (-5,-7)

the coordinate of Q=\_

6. The equation of a tangent line to a circle (x-2)^{2}+(y-1)^{2}=34 at a poor P(3

7. U the equation x^{2}+y^{2}+6x-4y+k=0 represent a circle, then the value(s) of k=\_