1. ## Functions

Hi,

I've been having problems with this question on functions, and am hoping someone can help me to understand how to go about it.

Let H be the function given by H(t)= -3. Evaluate H(x-3h) and H(x)-H(x-3).

Thanks,

2. Originally Posted by mld747
Hi,

I've been having problems with this question on functions, and am hoping someone can help me to understand how to go about it.

Let H be the function given by H(t)= -3. Evaluate H(x-3h) and H(x)-H(x-3).

Thanks,
Since $H(t)=-3$ and the function does not depend on the variable, what do you think $H(x-3h)$ will equal? If you can figure this out, then $H(x)-H(x-3)$ should be a cinch to figure out.