Question

only (c) show that f(x)=4x-6
please help....​

Answer 1

Answer:

a) 14

b) 3x-1

Step-by-step explanation:

a) put the value of x = 8 in f(x) = 2(x-1)

$2(8 - 1) \\ = 2 \times 7 \\ = 14$

b)

$g( {g}^{ - 1} x )= x \\ now \: the \: value \: ({g}^{ - 1} x) \: in \: the \: place \: of \: x$

so

$g ({g}^{ - 1} x) = ({g}^{ - 1} x + 1) \div 3 \\ also \: g ({g}^{ - 1} x) \: = x \\ \\ so \: \: \: \: x = ({g}^{ - 1} x + 1) \div 3 \\ \\ 3x = {g}^{ - 1} x + 1 \\ \\ {g}^{ - 1} x = 3x - 1 \\ \\ your \: answer \: is \: 3x - 1.$

HOPE IT HELPS