Question

Which representation does NOT show y as a function of x?

A) y = -3x
B) y = 0.5x^2 + 4
C) y = 4
D) y = |x| - 1

Answer 1

Option C) y = 4 does not show y as a function of x because y will always be 4 regardless of the value of x.

Step-by-step explanation:

The representation that does NOT show y as a function of x is option C) y = 4. In order for a representation to be a function, for every input value of x, there should be a unique output value of y. But in the case of y = 4, no matter what the value of x is, y will always be 4.