Question

if f(a) =ax +b where a
and b are integers f(-1)=-5
and f(3) = 3. then a and
bare equal to​

Answer 1

Answer:

a=2 and b = -3.

Step-by-step explanation:

Given f(-1) = -5.

a(-1)+b= -5

-a+b = -5

a=b +5 .....................(1)

f(3) = 3

a(3) + b = 3

(b+5)(3) + b = 3 (from 1)

3b + 15 + b =3

b= -3

Substituting in 1, a=2