Question

1. If a = -1 , the value of3a + 1 is ​

Answer 1

`f(a) = 3a + 1 \\ Now,\: a = - 1 \\ f( - 1) = 3( - 1) + 1 \\ f( - 1) = - 3 + 1 \\ \boxed{ f( - 1) = - 2}`

• Therefore, -2 is the right answer.