Question 182712
Given the function {{{f(highlight(x)) = -5*highlight(x) + 4}}} Find: 
a. f(-6)
b. f(c)
c. f(x + h)
d. f(x + h) - f(x)
e. f(a + h) - f(a)/ h means over h
:
I will do a, b , and d and you do the rest
:
f(x) simply means that for every x term in the function you will substitute in -the given value for x. See highlights in first line above.
:
a)
{{{f(highlight(-6))=-5highlight(-6)+4=30+4=red(34)}}}
:
b)
{{{f(highlight(c))=-5highlight(c)+4=red(-5c+4)}}}
:
d)
{{{f(highlight(x+h))=-5highlight((x+h))+4=-5x-5h+4}}}
{{{f(highlight(x))=-5highlight(x)+4=-5x+4}}}
so {{{f(x+h)-f(x)=-5x-5h+4-(-5x+4)=red(-5h)}}}