Day 3

•  Daily Objective: Students will define the y-intercept in math as well as translate it to real world meaning.
• Definition: Students will be able to define the y-intercept in math and understand how it is used in the real world.

  

  This picture captures a perfect example of the y-intercept used in math.
  The y-intercept is the point on a linear line where the line crosses the y-axis.
  Now when you define this using a real world equation such as: y= 40x + 10,
  the y equals the total cost if x is the variable(hours) and 10 is the initial fee.
  
  
  

  QUIZ

  Give the y-intercept shown in each of the following graphs.

  1)

  

  2)
  

  

  3)
  

  

  
  

  ANSWERS

  1) -6

  2)  5

  3) -1