The temperature at which water starts to boil is called its boiling point and is linearly related to the...

The temperature at which water starts to boil is called its boiling point and is linearly related to the altitude. Water boils at 212°F at sea level and at 193.6°F at an altitude of 10,000 feet.
(a) Find a relationship of the form T = mx + b where T is degrees Fahrenheit and x is altitude in thousands of feet.
(b) Find the boiling point at an altitude of 3,800 feet.
(c) Find the altitude if the boiling point is 196°F.
(d) Graph T and illustrate the answers to (b) and (c) on the graph.
(a) Choose the correct relationship below
A. T = -1.8x - 212
B. T = -1.84x + 212
C. T = 1.84x - 212
D. T = 1.84x + 212
(b) The boiling point at an altitude of 3,800 feet is ______ °F (Round to two decimal places as needed.)
(c) The altitude at which the boiling point is 196°F is ______ feet (Round to the nearest whole number as needed.)
(d) Graph T