Answer:
[tex]f(x) = 2x - 3 \\ \\ f( - \frac{1}{4} ) = 2( - \frac{1}{4} ) - 3 \\ \\ = - \frac{1}{2} - 3 \\ \\ = - \frac{1}{2} - \frac{6}{2} \\ \\ = \frac{ - 1 - 6}{2} \\ \\ = \frac{ - 7}{2} = - 3.5 = - 3 \frac{1}{2} [/tex]
I hope I helped you^_^
