Answer: check attached
Step-by-step explanation:
All explanation is shown in the attachment.
Goodluck...
To find initial price make t=0
Initial price: 1200
It represents growth because 1.025>1
It changes by 1.025*100=102.5% a year.
Answer:
15
Step-by-step explanation:
y=mx+b
b is the intercept
in this equation "m", the slope, would be one. the y-intercept, or "b" would be 15
Answer:
7.5
Step-by-step explanation:
the slope m is a measure of the rate of change
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (6, 45 ) and (x₂, y₂ ) = (9, 67.5 )
m =
=
= 7.5 ← rate of change