Question #a1d8c
1 Answer
Nov 2, 2016
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]}
