Give a Fitch-style natural deduction proof of the sentence ∀x(P (x) ∨ ∃yQ(y)) → (∀xP (x) ∨ ∃yQ(y)).
Hint: you will need to use RAA. If it helps, you may assume you already proved
¬∀xP (x) → ∃x¬P (x) (indeed, you proved this in Problem Set 7, problem 6(c)).

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

3

step-by-step explanation: