Which method do we not use when defining function? A. Mapping method
B. Vertical line test
C. Horizontal line test
D. “Every x can only have one y”

What are the relative frequencies to the nearest hundredth of the columns of the two-way table? a b group 1 102 34 group 2 18 14

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?