From the table below, determine whether the data shows an exponential function. Explain why or why not. x: 3 2 1 -1 y: 8 2 0.5 0.125
a.
No; the domain values are at regular intervals and the range values have a common factor 0.25.
b.
No; the domain values are not at regular intervals although the range values have a common factor.
c.
Yes; the domain values are at regular intervals and the range values have a common factor 4.
d.
Yes; the domain values are at regular intervals and the range values have a common factor 0.25.

In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius increase in temperature. a scientist observes that the humidity on monday morning is 5.75 grams per kilogram. he wants to know how much the temperature must increase for the humidity to reach at least 49.17 grams per kilogram. let t represent the increase in temperature, in degrees celsius, from monday morning's observation. write an inequality to represent the situation, and use it to determine the desired temperature increase.