Sunday

December 21, 2014

December 21, 2014

Posted by **victoria** on Tuesday, September 11, 2012 at 2:27pm.

f(x)= x^2+3 ; g(x)=3x-1

1. (f+g)

=x^2+3x+2

2. (f+g)(3)

= 20

3. (f-g)(x)

= x^2+3x-4

4.(fg)(x)

= 3x^3+1x^2-9x+3

5. (fg)(x)

=5

6. (f/g)(x)

=(x^2+3)/(3x-1)

Compostitions of functions :

7. (f o g)(x)

=3x^2+4

8. (f o g)(x)

=10

- Algebra.. -
**Steve**, Tuesday, September 11, 2012 at 3:16pm1. ok

2. ok

3. (f-g)(x) = x^2 - 3x + 4

4. (fg)(x) = 3x^3 - x^2 + 9x - 3

5. (fg)(x) is not a number. Also, I find no value for x where (fg)(x) = 5

6. ok

7. (fog)(x) = f(g(x))

= g^2 + 3

= (3x-1)^2 + 3

= 9x^2 - 6x + 4

8. same as 5.

**Answer this Question**

**Related Questions**

Algebra-Please check - Please check- sqrt of 2x + 15 = x Answers: -5.3 -3.5 -3 5...

Math HELP - I have my answers at the bottom but please do these questions so I ...

Algebra - 1. Find the slope of the graph of the linear function f with f(0)=4 ...

Algebra - Would someone please check these answers? Simplify. 3/x-5+1/1-4/x-5 ...

ALGEBRA - I NEED SOMEONE TO CHECK THESE PLEASE!!! IF B IS REPLACED WITH A ...

Algebra 1: 8th Grade - Simplify each expression. Write your answers using ...

English - Now, let's check how well you can use the expressions you've learned. ...

math(check answers please) - PLEASE CHECK THESE ANSWERS compare the pair of ...

Asap can someone pplz check these answers - Please check my answers I have 2 do ...

Chemistry(Please check) - 1) The Ka for acetic acid is 1.8e-5. What is the pH of...