For two functions, a(x) and b(x), a statement is made that a(x) = b(x) at x = 2. What is definitely true about x = 2?

Both a(x) and b(x) have a maximum or minimum value at x = 2.
Both a(x) and b(x) have the same output value at x = 2.
Both a(x) and b(x) cross the x-axis at 2.
Both a(x) and b(x) cross the y-axis at 2.

Question

For two functions, a(x) and b(x), a statement is made that a(x) = b(x) at x = 2. What is definitely true about x = 2?

 Both a(x) and b(x) have a maximum or minimum value at x = 2.
 Both a(x) and b(x) have the same output value at x = 2.
 Both a(x) and b(x) cross the x-axis at 2.
 Both a(x) and b(x) cross the y-axis at 2.

anonymous · Answer

both ax and bx have the same output value at 2.