Drawing a Graph in R?

Question

I'm trying to draw a graph of the function

 h(t)  =  200 - (1/2)9.8t^2 + 8t

but I keep receiving unexpected symbol errors when I do:

curve(200 - (1/2)*(9.8)t^2 + 8*t)

Any idea how to graph it correctly, and why I received the errors?

Answer 1

There are two problems with your command:

1. curve expects the variable to be named x, not t.
2. The multiplication sign * is missing between (9.8) and x.

Try

curve(200 - (1/2)*(9.8)*x^2 + 8*x)

Giving