Question

Ajudaaaaaaaa função afim?

Answer 1

y=ax+6

A (-a-4;-a-4)
neste--> x=-a-4 e y=-a-4

substituímos;;
y=ax+6
-a-4=a(-a-4)+6
-a-4=-a^2-4a+6
a^2+4a-a-4-6=0
a^2+3a-10=0

delta
b^2-4ac
9-(-40)
49

x=-b +/- _/delta /2a

x=-3 +/- 7 /2.1

x'=-3+7 /2
x'=4/2
x'=2

x"=-3-7 /2
x"=-10/2
x"=-5

R: S={2,-5}

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