The population of a city increases by 4000 people each year. in 2025 the population is projected to be 450000 what is an equation that gives the citys population p in thousands of people x after 2010

Assuming this is linear

write everything in thousands smaller

p=mx+b

b=initial amount

m=growth rate

city increases by 4 each year

in 2025, population is 450

find it after 2010, with 2010 being year 0 or x=0

so

2025-2010=15 years

15*4=60

increased by 60

450=result=increase+originalin2010

increase=60

450=60+original

minus 60

390=original

p=4x+390