Question

Let f(x)= -2x+4 and g(x)= -6x-7 find f(x)-g(x). Please help

Answer 1

f(x) - g(x) =
-2x + 4 - (-6x -7)=
-2x + 4 + 6x + 7 =

Answer 2

i got 4x+11?

Answer 3

yes 4x + 11

Answer 4

can u help me with some more?????

Answer 5

post

Answer 6

f(x)=3x-7 and g(x)=-2x-6 find (f o g)(4)

Answer 7

follow the same process notice I use the parenthesis

Answer 8

oh ok

Answer 9

What is the inverse of the given relation??? y=3x+12

Answer 10

fog means use the value of g in f(x)
find the value when x = 4
g(x)=-2x-6 and x = 4
g(4) = -2(4) -6 = -8-6 = -14
f(-14) = 3(-14)-7=-42 -7 = -49

3(-2x-6) -7 = -6x -18 -7 = -6x -25
x = 4 so -6*4 - 25 = -49

notice it does not matter if you work with x first or if you substitute first

Answer 11

the inverse of the relation y = whatever with x is to make x the subject so x = whatever with y in it.

Answer 12

y=3x+12
find x =

Answer 13

oh ok!