# Algebra problems

posted by .

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 don't 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 don't understand what the question is wanting.

• Algebra problems -

What is 1/8(16m-8)+17 in simplest form

## Similar Questions

1. ### algebra

I need some help with some algebra problems please. I don't under stand how to do that following. Find and simplify the difference quotient f(x+h) -f(x)/h, h cannot equal 0 for the given function. 1. f(x)=5x^2 2. f(x)x^2+3x+9
2. ### Algebra

Could you explain to me how to these type of problems?
3. ### Algebra

I have some problems that I need help with please. Thanxs! Find the domain of the function. 1. f(x)=-8x-2 Given fuctions f and g, perform the indicated operations. 2. f(x)=4x-9 g(x)=7x-3 find f - g. Given the functions f and g, determine …
4. ### Algebra

I don't understand how to do the folliwing problems. Find and simplify the difference quotient f(x+h) -f(x)/h, h cannot equal 0 for the given formula. 1. f(x)=5x^2 options: a. 5, b.5(2x+h), c. 10/h +x+5h, d. 5(2x^2+2xh+h^2)/h 2. f(x)=x^2+3x+9 …
5. ### Algebra

I don't understand how to do the folliwing problems. Find and simplify the difference quotient f(x+h) -f(x)/h, h cannot equal 0 for the given formula. 1. f(x)=5x^2 options: a. 5, b.5(2x+h), c. 10/h +x+5h, d. 5(2x^2+2xh+h^2)/h 2. f(x)=x^2+3x+9 …

7. ### Algebra

I need to have some problems checked and I need help with one of them. Determine which two functions are invereses of each other. 1. f(x)=5x, g(x)=x/5, h(x)=5/x -I got that f(x) and g(x) are invereses 2. f(x)=x-2/2, g(x)=2x-2, h(x)=x+2/2 …
8. ### pre calc

I have a few problems from my homework that I am having trouble with. #1 Find the difference quotient of f foreach function f(x)=1/(x+3) I got -2x+6 #2 Express the area of an isosceles right triangle as a function of the length x of …
9. ### Calculus

Find the sum and difference functions f + g and f – g for the functions given. f(x) = 2x + 6 and g(x) = 2x - 6 f(x) = x^2 - x and g(x) = -3x + 1 f(x) = 3x^3 - 4 and g(x) = -x^2 + 3 State the domain and range for the sum and difference …
10. ### Math

Evaluate the difference quotient for the given function. Simplify your answer. f(x)=1/x, (f(x)-f(a))/(x-a)

More Similar Questions