Answer:
Here's what I get
Step-by-step explanation:
(a) Identifying the graphs
Jonah got $20 at the beginning of the summer (Week 0), while Anchee got nothing until Week 1.
The upper graph starts at $20.
It represents Jonah's earnings.
The lower graph starts at zero.
It represents Anchee's earnings.
(b) Writing equations
Let J = Jacob's earnings
and A = Anchee's earnings
and w = the number of weeks
Jacob earns $20 plus $3 each week, so
J = 20 + 3w or
J = 3w + 20
Anchee earns $5 each week, so
A = 5w
(c) Meaning of m and b in real life
The value of b tells you how much money they had at the beginning of the summer, i.e., Week 0.
The value of m tells you how much they earned each week, that is, their rate of pay.
(d) Meaning of m and b in algebra
b tells you where the graph starts (the y-intercept or value when x = 0).
m tells you the slope of the line (how much y increases when x increases by one unit).
