Aletter used to represent a number is called a

a. exponent
b. term
c. expression
d. variable
e. coefficient

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x