Sum of polynomials?
(m+n+3) + (m+n+4)

a.-1
b. m2+n2+7
c.2m+2n+7
d.2m2+2n2+7

 Option 'C' is correct.

Explanation:

Since we have given that

We need to calculate the sum of polynomial for which we will group the like terms and add them.

So,

We first grouping the like terms , i.e.

Now, add the like terms, we get

Therefore, the sum of above polynomial is

Hence, Option 'C' is correct.

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

it shoild be o

step-by-step explanation: