If h(x)= 9x^9-4x^4+3x-2, find h(t)

What do I substitute when I am only given t?

by the notation, wherever you see an x, replace it with t

h(x)= 9x^9-4x^4+3x-2
h(t)= 9t^9-4t^4+3t-2

just like
h(☃)= 9☃^9-4☃^4☃+3☃

To find h(t), you need to substitute the value of t into the given polynomial function h(x). In this case, since you are only given t, you will substitute t for every instance of x in the function h(x).

So, in the function h(x) = 9x^9 - 4x^4 + 3x - 2, substitute t instead of x to get:

h(t) = 9t^9 - 4t^4 + 3t - 2

Therefore, h(t) = 9t^9 - 4t^4 + 3t - 2.