What is the result of subtracting the second equation from the first?
8x - 4y = -4
-3x+ 4y = 5

Step-by-step explanation:

For this exercise you need to remember:

1) The mulitplication of signs:

2) By definition, like terms contain the same variables with the same exponent.

Then knowing this, and given the equations:

and

You must subtract the like terms, which means that you must subtract the numerical coefficients of each term.

Then, you get the result is:

a.)the line for function b is steeper