Determine if the functions \( f(x) = 3x + 1 \) and \( g(x) = \frac{x - 1}{3} \) are inverse functions.

5. If the area of a rectangle is \( x^{2}-x-6 \) sq. units and its length is \( (x-3) \) units, then its breadth is \( \begin{array}{llll}\text { a. }(x-2) \text { units } & \text { b. }(x+3) \text { units } & \text { c. }(x+2) \text { units } & \text { d. }(x-3) \text { units }\end{array} \)

The distance of \( x \) from 0 must be les the 6 Express in the modulus form the following iniqualines - \( -2<2 x<5 \)

6. \( 2 x-3(6-x)=4 \)

e. \( \frac{14 x^{4} y^{7}}{16 x y^{7}}=7 x \)

1. If \( \mathbf{A}=[1,2,3] \) and \( \mathbf{B}=[4,5,6] \), what is \( \mathbf{A}+\mathbf{B} \) ?