Question

Brent was looking at his cell phone bill and saw that the total number of texts he has sent is tracked, as shown below:

Month
Texts
1
120
2
237
3
354
4
471


The function representing Brent's texting per month is f(m) = 117m + 3. What does the 117 represent?

Answer 1

The number of texts he sends per month

Explanation:

The function f(m) = 117m + 3 is a linear function, which is in the form f(x) = mx+b. In this form, m (the number beside our variable) is the slope, or rate of change, and b (the number added or subtracted) is the y-intercept.

In our function, 117 is the number beside the variable, which makes it the slope. This is the rate of change of this function; it describes how the dependent variable (number of texts) changes for every change in the independent variable (months).

In other words, it tells how many texts he sends per month.

Answer 2

It should be the additional texts per month or D