Odpowiedź:
a ) y = 3 x - 5
y = 3 x + b i P =( 2, 7)
więc
7 = 3*2 + b
b = 1
Odp. y = 3 x + 1
===============
b) y = [tex]\frac{2}{3} x + 3[/tex]
y = [tex]\frac{2}{3} x + b[/tex] i P = ( - 10, 8 )
8 = [tex]\frac{2}{3} *(- 10) + b[/tex]
8 = [tex]-\frac{20}{3} + b[/tex]
b = [tex]\frac{24}{3} +[/tex][tex]\frac{20}{3} = \frac{44}{3} = 14 \frac{2}{3}[/tex]
Odp. y = [tex]\frac{2}{3} x + 14 \frac{2}{3}[/tex]
================
c ) x = 4 P = ( 2, - 5)
Odp. x = 2
==============
d ) y = - 6 P = ( 2, 8 )
Odp. y = 8
z.2
y = 3 x - 8
a) y =3 x + 5
b) y = - [tex]\frac{1}{3} x - 5[/tex]
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Odpowiedź:
a ) y = 3 x - 5
y = 3 x + b i P =( 2, 7)
więc
7 = 3*2 + b
b = 1
Odp. y = 3 x + 1
===============
b) y = [tex]\frac{2}{3} x + 3[/tex]
y = [tex]\frac{2}{3} x + b[/tex] i P = ( - 10, 8 )
więc
8 = [tex]\frac{2}{3} *(- 10) + b[/tex]
8 = [tex]-\frac{20}{3} + b[/tex]
b = [tex]\frac{24}{3} +[/tex][tex]\frac{20}{3} = \frac{44}{3} = 14 \frac{2}{3}[/tex]
Odp. y = [tex]\frac{2}{3} x + 14 \frac{2}{3}[/tex]
================
c ) x = 4 P = ( 2, - 5)
Odp. x = 2
==============
d ) y = - 6 P = ( 2, 8 )
Odp. y = 8
==============
z.2
y = 3 x - 8
a) y =3 x + 5
b) y = - [tex]\frac{1}{3} x - 5[/tex]
------------------------
Szczegółowe wyjaśnienie: