From the table below, determine whether the data shows an exponential function. Explain why or why not. Х
-5
-3
-2
|4|2|
y
0.5
8
32
a. Yes; the domain values are at regular intervals and the range values have a common factor 8.
b. Yes; the domain values are at regular intervals and the range values have a common factor 4.
C. No; the domain values are not at regular intervals.
d. No; the domain values are at regular intervals and the range values have a common factor 4.

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?