If f(x) is an even function and (6, 8) is one the points on the graph of f(x), which reason explains why (–6, 8) must also be a point on the graph?
An even function has the property that f(x) = f(-x)
So.....if x = 6, then -x = -6 and we have
f(6) = 8 and f(-6) = 8
So f(x) = f(-x)
