Beginning & Intermediate Algebra question

[kelseykay87]

evaluate each of the following given k(x)=-5x+7, j(x) =8x-4 and m(x)=2x2

1. (k+j)(x)

2. (jm)(x)

 

[topsquark]

Hint: (k + j)(x) is a notation representing k(x) + j(x). What is (jm)(x) representing?

-Dan

 

[Dr.Peterson]

Here are a couple sources to supplement what your textbook says about this topic:

Algebra of Functions- MathBitsNotebook(A2)

mathbitsnotebook.com

Algebra - Combining Functions

In this section we will discuss how to add, subtract, multiply and divide functions. In addition, we introduce the concept of function composition.

tutorial.math.lamar.edu

 

[lookagain]

... and m(x)=2x2

kelseykay87, is this supposed to be \(\displaystyle \ m(x) \ = \ 2x^2 \ \)?

 

[kelseykay87]

yea it is