Question

For the function w, w(9)=-7, and w(-7)=9. If y=w(x), what is the value of y when x=-7?

Answer 1

The value of y, where y=w(x), when x=-7 is given directly as w(-7)=9. Therefore, y is 9.

Step-by-step explanation:

The question asks for the value of y when x=-7 for the function w, given that w(9)=-7, and w(-7)=9. From the information, if y=w(x), then when x=-7, the value of y is simply what is assigned by the function w at that point, which is given as 9.

Therefore, y=w(-7)=9. This result implies that the function w takes the input -7 and maps it to 9, therefore y, which represents the value of the function at any input x, is 9 when x equals -7.

Answer 2

that question is already solved, here is the proof:
w(-7) = 9
which means that the function w in terms of -7 equals 9
the question is how much is the value of the function w(x) when x = -7, that is, again:
w(-7) = 9
w(x) = y
so the value of y is 9