Question

Let f(x) = -2x - 7 and g(x) = -4x + 6.
Find (f0x)(-5)

Answer 1

f of x, where x = -5.

f(-5) = -2(-5)-7
solve for f(-5)

Answer 2

ahemm did you mean -> f( g(x) ) ?

Answer 3

^that was what I was wondering

Answer 4

i think question is fog(x).

Answer 5

or ( f o g)(-5) ?

Answer 6

( f o g )(-5) ^^

Answer 7

gyanu looks "foggy" yes

Answer 8

\(\bf f(x) = -2x - 7 \qquad {\color{red}{ g(x)}} = -4x + 6
\\ \quad \\

(f\circ g)(x)\implies f(\quad g(x)\quad )=-2({\color{red}{ -4x + 6}}) - 7
\\ \quad \\
(f\circ g)({\color{blue}{ 15}})\implies f(\quad g({\color{blue}{ 15}})\quad )=-2({\color{red}{ -4({\color{blue}{ 15}}) + 6}}) - 7\)

Answer 9

shoot.. is -5.. ahemm ok well \(\bf f(x) = -2x - 7 \qquad {\color{red}{ g(x)}} = -4x + 6
\\ \quad \\

(f\circ g)(x)\implies f(\quad g(x)\quad )=-2({\color{red}{ -4x + 6}}) - 7
\\ \quad \\
(f\circ g)({\color{blue}{ -5}})\implies f(\quad g({\color{blue}{ -5}})\quad )=-2({\color{red}{ -4({\color{blue}{ -5}}) + 6}}) - 7\)

Answer 10

f of g of x, where x=-5.

f(g(-5)):

f(gx) = f(x), where g(x) = x

f(gx) = -2(-4x+6)-7
f(gx) = 8x-12-7
f(gx) = 8x-19

Let x = -5

8(-5)-19 = -59

or
============
f(g(x)), where x = -5

g(-5) = -4(-5)+6
g(-5) = 26
f(26) = -2(26)-7
f(26) = 59