Homework Help: Algebra problems

Posted by Soly on Wednesday, September 5, 2007 at 8:10pm.

I have some problems that I would like checked please.

Find and simplify the difference quotient f(x+h)-f(x)/h, h can not equal 0 for the given functions.

1. f(x)=x^2+3x+9- I got 2x+h+3

Evaluate the piecewise function at the given value of the independent variable.

2. g(x)={(x^2+2)/x-2 if x can not=2
{x+8 if x=2
Determine g(-5)

my options for the answer are: a. -5, b.3, c.3/7, and d. -27/7

-I got -27/7 and 3 when I solved it, but I dont understand what the question is wanting because -27/7 doesnt equal 2.

3. f(x)={-5x+4 if x<-3
{2x+3 if x > or equal to -3
Determine f(-7)

my answer options: a.39, b.-10, c.42, d.35

-I got 39 and -11 when I solved it and I also dont understand what the question is wanting.

No one has answered this question yet.

Answer this Question

Related Questions

algebra - I need some help with some algebra problems please. I dont under stand...
Physics - I have some physics problems that I would like to get checked please?
Algebra - I dont understand how to do the folliwing problems. Find and simplify ...
Algebra - I dont understand how to do the folliwing problems. Find and simplify ...
Algebra - Here is the problem: A two-digit number is eight times the sum of its ...
algebra- FINAL UNIT!! - Hi! My name is Jason, I needed help studying for ...
Algebra - Here is the problem: A two-digit number is eight times the sum of its ...
Algebra - Hello. It's the beginning of the school year, and I've quite ...
Math - Please simplify: Very confused, have many problems like this and need ...
Algebra - Please Find the difference quotient f(x+h)-fx/h for f(x)= 4x-9 and ...

For Further Reading

First Name:
School Subject:
Answer: