look at the figure. what is the intersection of planes qtu and uw?

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled