Question

Question #a1d8c

Answer 1

`(-1,-9),(-5,3),(1,-3),(7,-1)`

Explanation:

Choose values of x and substitute them into f(x) to obtain the corresponding y-coordinates.

For `f(x)=(-9)/(x+2)`

`•x=color(blue)(-1)rArrf(color(blue)(-1))=(-9)/1=-9to(-1,-9)`

`•x=color(blue)(-5)rArrf(color(blue)(-5))=(-9)/(-3)=3to(-5,3)`

`•x=color(blue)(1)rArrf(color(blue)(1))=(-9)/3=-3to(1,-3)`

`•x=color(blue)(7)rArrf(color(blue)(7))=(-9)/9=-1to(7,-1)`

Note x = -2 cannot be used as `(-9)/0` is undefined.
graph{(-9)/(x+2) [-20, 20, -10, 10]}