In each of the following problems , use the information given to determine

a. \((f+g)(-1)\)

b.\((f-g)(-1)\)

c.\((fg)(-1)\)

d. \(\displaystyle{\left({\frac{{{f}}}{{{g}}}}\right)}{\left(-{1}\right)}\)

for the following functions,

\(f=\left\{(5,2),(0,-1),(-1,3),(-2,4)\right\} \text{ and } g=\left\{(-1,3),(0,5)\right\}\)

\(f=\left\{(3,15),(2,-1),(-1,1)\right\} \text{ and } g(x)=-2\)