Question

 A barber has already cut for peoples hair today. Every 10 minutes another person comes to the Barber to get a haircut. Write an equation that models the total number H of haircuts m minutes from now.

Please explain how you got to your answer!

Answer 1

• H = 0.1m + 4

Explanation:

This is going to be a linear function and equation in the form:

• y = mx + b, where m is slope, b is y-intercept

y = H is going to be a number of haircuts.

A barber has already cut four peoples hair today, this is a y-intercept, so b = 4.

Each 10 minutes correspond to a haircut, m minutes has m/10 = 0.1m number of 10 minutes, this is going to be the slope.

So the equation is:

• H = 0.1m + 4