Answer:
SELECT y=3x - 8 and y= 5x -8 and y=2x -8 and y = 1/3x -8
Step-by-step explanation:
The y-inercept is the number after the x so y= mx + c
m as in gradinet
and c as in y-intercept (the point where the graph passes the y-axis)
Your rate of change would be 3/4 lb/week.
You could model this with a linear eq:
y = 8+ 3/4x
Use constant of variation y =kx i.e
15 gallons k=>17.55
k gallons =17.55/15=1.17
18 gallons k=>21.06
k gallons =21.06/18=1.17
Therefore ans => y=1.17x
