Question

F(x)= -4x+7 and g(x)= 10x-6
find f(g(x))

Answer 1

Think of x as 'unit' So lets rewrite.
F(x)= -4x+7 which is now -4*'unit' +7
g(x)= 10x-6 which is now 10*'unit' -6

find f(g(x)) = f (10x-6)
now lets apply f(x) which is -4*'unit'+7

so now that becomes
f(g(x)= -4(10x-6)+7

Answer 2

ok these are my answers to choose from
-40x+24
-40x+31
-40x+64
-40x+70

Answer 3

now lets expand
f(g(x)= -4(10x-6)+7

what do we get?

Answer 4

-40x+24+7?

Answer 5

yes now add the 24 and 7

Answer 6

31

Answer 7

tytyty

Answer 8

yes

Answer 9

i understand now

Answer 10

no worries, hope my 'unit' methods helped u ..

Answer 11

yup ty