Answer:
C. l x-102 l =1
x=103 or x=101
Step-by-step explanation:
Mira's walkie-talkie has a range of 1 mile. Mira is traveling on a straight highway and is at mile marker 102.
This means the minimum mile marker from mile marker 102 that Mira's walkie-talkie will reach is [tex]102-1=101[/tex] mile and the maximum mile marker from mile marker 102 that Mira's walkie-talkie will reach is [tex]102+1=103[/tex] mile.
If x mile represents the mile marker from mile marker 102, then the absolute value of [tex]x-102[/tex] is 1 mile, so the equation is
[tex]|x-102|=1[/tex]