Are useful when you want to show the ratio of different parts to the whole.
a. tables
b. pie graphs
c. bar graphs
d. line graphs

Find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x â’ 1 , y = 0, x = 5; about the x-axis v = sketch the region. sketch the solid, and a typical disk or washer.

Which function has an inverse that is also a function? a. g(x) = 2x-3 b. k(x) = -9x2 c. f(x) |x+2| d. w(x) = -20

7x^2-9x+5=0 find the discriminant and number of real solutions