Which equation is a function of x?
x=5
x=y^2+9
x^2=y
x^2=y^2+16

 The answer is (c) x² = y.

Step-by-step explanation: We are given four options out of which we are to select the one which is a function of 'x'.

To be a function of 'x', the equation must involve 'y to the power 1' only.

The first option is

which is constant and so this option is incorrect.

The second option is

which is incorrect because it involves y².

The third option is

which is correct because it involves a single power of y.

The fourth option is

which is also incorrect because it involves y².

Thus, (c) x² = y is the correct option.

109 is the nearest whole number/final answer! : )

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )