👤

Sagot :

[tex]f( - 1) = 3[/tex]

[tex]f(2) = 9[/tex]

[tex] - a + b = 3[/tex]

[tex]2a + b = 9[/tex]

b = 3 + a

2a + ( 3 + a ) = 3a + 3 = 9

3a = 6

a = 2

-a + b = -2 + b = 3

b = 3 + 2 = 5

donc

[tex]f(x) = 2x + 5[/tex]

© 2024 IDNLearn. All rights reserved.