Answer:
Step-by-step explanation:
Put the numbers where x is in the equation and do the arithmetic. For purposes of evaluation, it is often convenient to write the equation in Horner form:
h(x) = (2.8x +.01)x^2 -1
Then ...
h(1) = (2.8 +.01)·1 -1 = 1.81
h(2) = (2.8·2 +.01)·2² -1 = 5.61·4 -1 = 21.44
__
If you have several evaluations to do, it is convenient to use a calculator or spreadsheet to do them.
