Question

t = 29 - 8a
the temperature, t, in degrees celsius, as measured by a weather balloon at an altitude of a kilometers from the ground is given by the equation. what is the best interpretation of 29 as shown in the given equation?
choose 1 answer:
a the temperature on the ground is 29 degrees celsius.
b the weather balloon reaches a maximum altitude of 29 kilometers.
c the temperature increases by 29 degrees celsius for every kilometer increase in altitude.
d the temperature decreases by 29 degrees celsius for every kilometer increase in altitude.

Explanation:

In the linear - equation $T = 29-8a$, when $a = 0$ (which represents the ground - level as altitude $a$ is 0 kilometers), $T=29$. So, 29 represents the temperature at ground - level.

Answer:

A. The temperature on the ground is 29 degrees Celsius.