The light intensity of a certain brand of light bulb is modeled by the function f(w) = 1.1w where w represents watts. Which statement BEST describes the function? A) light intensity increases exponentially B) light intensity increases linearly C) light intensity is constant D) light intensity increases
Accepted Solution
A:
For this case we have the following function:
f(w) = 1.1w
The first thing we must do for this case is to define the variables. We have then: w: represents watts
We observe that the function varies directly, therefore, we have a linear function and the constant of variation is positive. That is, the slope of the line is positive. Therefore, the linear function grows.