Answer:
A. 
Step-by-step explanation:

I am joyous to assist you anytime.
(a) Truck carries 90 gallons of diesel fuel to 660 miles.
So, 1 gallon of diesel fuel to 660/90 = 22/3 miles.
30 gallons of diesel fuel to = 220 miles.
Hence, if x-axis represents the number of miles and y-axis represents the number of gallons, then, (660, 90) and (220, 30) are points on the graph.
Join (660, 90) and (220, 30), we get the graph of a line.
Note that (0, 0) is also a point on the line.
Equation of the line is .
(b) x represents the number of miles. Therefore, the possible values for x is the closed interval [0, 660].
Hence, the domain of the function is [0, 660].
(c) Origin represents that the truck is not moving and there is no diesel fuel loaded in the truck.
Answer:
y = 2/3x
Step-by-step explanation:
3x + 2y = 6
2y = 6 - 3x
y = 3 - 3x/2 or y = - 3/2x + 3
- - - - - - - - - - - - - -
Then find the negative reciprocal of the slope of the original line.
y = 2/3x
Answer:
Division property of equality
Step-by-step explanation:
They are dividing both sides.