f(x)= l -4x+3 l
that means
f(-2)= l -4(-2)+3 l = l8 +3l = l11l = 11
f(-1)= l -4(-1)+3 l = l 4+3l = l7l = 7
f(0)= l -4(0)+3 l = l3l = 3
f(1)= l -4(1)+3 l = l-4 +3l = l-1l = 1
f(2)= l -4(2)+3 l = l-8 +3l = l-5l = 5
The only thing that changes is that the image will always be the absolute value, it is a linear equation
_____________
the rate of change is the slope (m )
y = mx + b
m= -4
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The average
m1 = (y2-y1)/ (x2-x1)
point
(x,y)
(x1,y1) =(1,1)
(x2, y2) =(2,5)
m1 = (5-1)/ (2-1) = 4/1
m1=4
m2= (y2-y1)/ (x2-x1)
(x,y)
(1,1)
(-2, 11)
m2= (11-1)/( -2-1)
m2= -10/3
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average
