Question

escreva a função afim f(x) = ax+b, sabendo que:
a) f(1) = 5 e f(-3) = -7

b) f(-1) = 7 e f(2) = 1

c) f(1) = 5 e f(-2) = -4

Answer 1

a) 5x-7
 f(x)x=-7-5
f(x)x=-12

b)f(x)7x1
 f(x)x=1-7
f(x)x=-6

c)f(X)5x-4
 f(x)x=-4-5
f(x)x=-9

Answer 2

1f-3 -5-f =7
1f-f-5-3= 7
f-2=7
f=7+2
f=9/1
F=9