MaliaHale
MaliaHale
05-04-2016
Mathematics
contestada
y=kx+b
A (1,-2) B (-2,-8)
Linear functions!
Respuesta :
apologiabiology
apologiabiology
05-04-2016
k=slope
b=y intercept
find slope
slope=(y2-y1)/(x2-x1)
(x,y)
(1,-2)
(-2,-8)
x1=1
y1=-2
x2=-2
y2=-8
slope=(-8-(-2))/(-2-1)=(-6)/(-3)=2/1=2
k=2
subsitute
y=2x+b
subsitute one point
(1,-2)
x=1,y=-2
-2=2(1)+b
-2=2+b
subtract 2
-4=b
y=2x-4
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