What is the length of line segment a b? round to the nearest tenth. 19.3 in. 21.3 in. 23.5 in. 68.0 in.

What is the distance between (–2 1/2,-3) and (1, –3)?

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)

Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2