Odpowiedź:
A ( - 5, 12 ) B ( 4, - 3 )
więc
[tex]a_{AB} = \frac{- 3 - 12}{4 - ( - 5)} = \frac{- 15}{9} = - \frac{5}{3}[/tex]
y = - [tex]\frac{5}{3}[/tex] x + b B ( 4, - 3)
zatem po podstawieniu mamy - 3 = - [tex]\frac{5}{3}* 4 + b[/tex]
- [tex]\frac{9}{3} =[/tex] [tex]- \frac{20}{3}[/tex] + b
[tex]-\frac{9}{3} + \frac{20}{3} =[/tex] b
b = [tex]\frac{11}{3}[/tex]
Odp. y = [tex]- \frac{5}{3}[/tex] x + [tex]\frac{11}{3}[/tex]
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Odpowiedź:
A ( - 5, 12 ) B ( 4, - 3 )
więc
[tex]a_{AB} = \frac{- 3 - 12}{4 - ( - 5)} = \frac{- 15}{9} = - \frac{5}{3}[/tex]
y = - [tex]\frac{5}{3}[/tex] x + b B ( 4, - 3)
zatem po podstawieniu mamy - 3 = - [tex]\frac{5}{3}* 4 + b[/tex]
- [tex]\frac{9}{3} =[/tex] [tex]- \frac{20}{3}[/tex] + b
[tex]-\frac{9}{3} + \frac{20}{3} =[/tex] b
b = [tex]\frac{11}{3}[/tex]
Odp. y = [tex]- \frac{5}{3}[/tex] x + [tex]\frac{11}{3}[/tex]
=======================
Szczegółowe wyjaśnienie: