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Sagot :

a) y = mx + p

A€(d)

ya = m * xa + p

b) B € (d)

yb = m * xb + p

c) yb-ya = m*xb+p - m*xa - p = m*xb-m*xa

d) yb-ya = m(xb-xa)

m=(yb-ya)/(xb-xa)

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