To determine the correct relationship between points on the graphs of ( f(x) ) and ( f(-x) ), let's analyze what it means for a point ( (x, y) ) to lie on the graph of ( f(x) ). This means that ( y = f(x) ).
Now, for ( f(-x) ), we need to find the corresponding point when we input ( -x ) into the function. The point on the graph of ( f(-x) ) would be ( (-x, f(-x)) ).
Thus, if ( (x, y) ) is on the graph of ( f(x) ), then:
- We have ( y = f(x) ).
- The point corresponding to ( -x ) would be ( (-x, f(-x)) ).
So, we have:
- ( (x, y) ) is on the graph of ( f(x) ) ⇒ ( (x, f(x)) )
- The corresponding point on the graph of ( f(-x) ) would need to evaluate ( -x ), giving us ( (−x, f(−x)) ).
However, none of the provided options exactly describes this relationship correctly. Let's evaluate the options to see which one is factually close:
Correct Option:
- If (x,y) is on the graph of f(x) then (−x,y) is on the graph of f(−x).
This statement implies that for every point ( (x, f(x)) ) on the graph of ( f(x) ), there is a point ( (-x, f(-x)) ) on the graph of ( f(-x) ), as the value of ( y ) remains the same but the ( x ) value is inverted.
Thus, the correct statement providing the true relationship is:
- If (x,y) is on the graph of f(x), then (−x,y) is on the graph of f(−x).