Let view has several functions, the constant, and finally affine linear. 
FUNCTION constants: 
Is said to be constant because its value does not change, to each value of x will always correspond  value K.
FUNCTION  AFÍN:
This function adds K after multiplication by m.
FUNCTION LINEAL.
This function is only multiplied by m.
To clarify  differences between them move on to  presentation at the following address
 
 
 
To carry out  activities of the subject you There you turn to  following pages:
Use drawings to label specificvocabulary
Activities to detect previous
knowledge 
 
 
 
First determine  slope and intercept of a line.
y = m x + k
You have to write  values of m k to determine a equation of a line through to given points.
Exercise 4
Exercise5 
Exercise 6
 
 
 
Finally undertake to following:
Judging Criteria: 
• Presentation: 20% 
• Operating: 20% 
• Reasoning: 30% 
• Procedures: 30%