3
12-10-24
Emma Bravo
Interpreting Slope and Intercepts
The Hair Stylist
Adrienne is a hairstylist at a new age salon. She pays a monthly fee to rent a station
at the salon. The graph below represents the profit she makes each month based on
the number of haircuts she performs.
300
250
200
150
100
50
12 15 18 21 24 27 30 33 35 39 42
-50
# haircuts
-100
-150
-200
Use the graph to answer the questions below.
1) If Adrienne does 21 hair cuts, what is her profit? $150
2) What is the slope of the line?
1/1
3) What do the numbers in the slope represent in the context of the problem?
The profit per haircut
4) What is the x-intercept? 10. 12)
5) What do the values (x, y) of the x-intercept mean in the context of the problem?
The numbre of haircuts needed
6) What is the y-intercept? 1=200 a
)
7) What do the values (x, y) of the y-intercept mean in the context of the problem?
The monthly fee to rent the station
