Janiewrites a polynomial expression using only one variable, x, with degree 3. Max writes a polynomial expression using onlyone variable, x, with degree 7.
a. What can you determine about the degree of the sum of Janie's and Max's polynomials?
b. What can you determine about the degree of the difference of Janie's and Max's polynomials?

its 4 because 2 times 2 is 4, if you double the number two you get four

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )