2. 1. CONSTANT FUNCTION
• a function whose values do not vary and thus are constant
Eg 1: y = 5
Domain = { x ε R }
-∞ +∞
5
Range = { y = 5 }
3. 1. CONSTANT FUNCTION
• a function whose values do not vary and thus are constant
Eg 2: x= 50
Domain = { x = 50 }
Range = { y ε R }
50
+∞
-∞
4. 2. LINEAR FUNCTION
• a first degree polynomial function of one variable
y = f(x) = mx + c
slope / gradient y-intercept
• graph : straight lines.
- skewed to the left m < 0
- skewed to the right m > 0