Keiko surveyed people with cell phones.

Ages in years = a

Texts they send per day = t

He drew a best-fit line and determined its equation.

Evaluate how many texts a 15 year old would send each day according to Keiko's trend line equation.

Keiko surveyed people with cell phones Ages in years a Texts they send per day t He drew a bestfit line and determined its equation Evaluate how many texts a 15 class=
Keiko surveyed people with cell phones Ages in years a Texts they send per day t He drew a bestfit line and determined its equation Evaluate how many texts a 15 class=