Evaluate the functions

Given: f(x) = x³ - 3x and g(x) = x² - 8. What is f(10) - g(10)?


Solution:

If f(x) = 5x2 - 7, what is f(-3)?

Find the domain

Evaluate the function r(x) = x/(x+4), find r(1/2)

r (1/2)=(1/2)/(1/2+4)=(1/2)/(9/2)=(1/2)(2/9)=1/9

If h(n) = n^3-2n^2+5n+7 find h(0) and h(-1)

h(0) = (0)^3-2(0)^2+5(0)+7=7 
and 
h(-1) = (-1)^3-2(-1)^2+5(-1)+7 = -1-2-5+7=-1 


:)

Use the following function rule to find f(9+h). Simplify your answer.

f(n) = -4n – 10


Solution: