Answer:

Step-by-step explanation:
Given
The attached graph
Required
Determine the equation
First, pick any 2 corresponding coordinates


Next, calculate the slope (m)




The equation is calculated as:

Where:
and 



Make y the subject

Answer:
Haircut : $20
Tip (15%) : $3
=> $20+$3= $23
Step-by-step explanation:
the y-intercept is where it crosses the y-axis so you are only looking at where it crosses
Answer:
Option C will be your answer
Step-by-step explanation:
hope it helps you
have a great day!!
The answer would be D. Y=secx
Hope this helps and good luck!