The domain tells you about the independent variable, number of payments made. So the inequality should be
smallest number of payments made ≤ variable representing payments ≤ largest number of payments made.
The smallest number of payments is 0 and the largest is 8, so you'll have
<span><span>
0≤variable≤8</span></span>
Parallel = same slope
Y = 2.4x + b
Plug in the point to find b
1 = 2.4(3) + b
1 = 7.2 + b
b = -6.2
Final equation: y = 2.4x - 6.2
Step-by-step explanation:
this can be found by determination of the highest and lowest x values