7. HIKING The graph relates temperature y (in degrees Fahrenheit) to altitude x
(in thousands of feet).
a. Find the slope and y-intercept.
b. Write an equation of the line.
c. What is the temperature at sea level?

a.  Find the slope and y-intercept.

(0,59)   (7,33.8)

x₁  y₂      x₂   y₂    b = 59 ⇒ The temperature is 59 ° F when altitude is 0 feet.

33.8 -59                   -25.2

      =   = -3/6=m ⇒ The temperature drops 3.6 degrees

7 - 0                               7                                     every 1,000 feet.

b. Write an equation of the line.

y = -3.6x + 59

c. What is the temperature at sea level?

59 °

more detail

step-by-step explanation:

it would be 3 ÷by 6 because the number on each side