alanava
alanava
29-09-2016
Mathematics
contestada
Please help. here is a screenshot of the question.
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caylus
caylus
29-09-2016
Hello,
1) the line parallele to ox passing by (1,4) has for equation y=4
f(x)=4 if -1<=x<=1
2) the line pasing through (3,2) and (5,4) has for equation:
y-2=(4-2)/(5-3)(x-3)
==>y=x-3+2
==>y=x-1
f(x)=x-1 if 3<=x<=5.
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