Answer:
hope that this is helpful.
Step-by-step explanation:
[tex]1.f(x) = x + 25 \\ f(37) = 37 + 25 \\ = 62 \\ 2.f(x) = - 2x + 20 \\ f(20) = - 2(20) + 20 \\ = - 40 + 20 \\ = - 20 \\ 3.f(x) = - 2 x+ 20 \\ f( - 5) = - 2( - 5) + 20 \\ = 10 + 20 \\ = 30 \\ 4.f(x) = 3 {x}^{2} + 4x + 20 \\ f(2) = 3( {2}^{2} ) + 4(2) + 20 \\ = 3(4) + 8 + 20 \\ = 12 + 8 + 20 \\ = 40 \\ 5.f(x) = \sqrt{x - 6} \\ f(31) = \sqrt{31 - 6} \\ = \sqrt{25} \\ = 5 \\ 6. \sqrt{x - 8} \\ f(4) = \sqrt{4 - 8} \\ = \sqrt{ - 4} [/tex]
