No. y = x2 - 4 describes a parabola, which means that for each value of x, there will be two values of y. This is not a one to one function.
y = (x^3)/8
Y=sin X is a function because for each value of X, there is exactly one Y value.
If the question is, Is y = x4 an exponential function ? then the answer is no.An exponential function is one where the variable appears as an exponent.So, y = 4x is an exponential function.
y = x This is a line and a function. Function values are y values.
Without additional information, one can only say that y is a function of x, w and t.
It would be less steep
Y=sin X is a function because for each value of X, there is exactly one Y value.
y = x - 3 is a linear function where for each x-value we find one and only one y-value.
If the question is, Is y = x4 an exponential function ? then the answer is no.An exponential function is one where the variable appears as an exponent.So, y = 4x is an exponential function.
determine whether each relation is a function y equals -8
y = x This is a line and a function. Function values are y values.
no
If you plug in y for the x function, and it equals the answer you got, it is right.
y - |x| is an expression, not a function.
Y=X^2 is a function for it forms a parabola on a graph.
Yes.
Yes, it is.
Yes.