Is the sequence 2, 6, 18, 54, ...
a. arithmetic
b. geometric

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in