Find the focus and directrix of the parabola with the given equation.7x2 = -11y
A. Focus: 
, directrix: y = 
B. Focus: 
, directrix: x = 
C. Focus: 
, directrix: y = - 
D. Focus: 
, directrix: y = 
Answer: D
You might also like to view...
Evaluate the algebraic expression under the given conditions.6 - 2y for y = 7
A. 20 B. -1 C. 8 D. -8
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = 7x3
A. 
B. 
C. 
D. 
Solve the following problem. Be sure to make a diagram of the situation with all the given information labeled. ? A person standing on top of a 16-foot high sand pile wishes to estimate the width of the pile. He visually locates two rocks on the ground below at the base of the sand pile. The rocks are on opposite sides of the sand pile, and he and the two rocks are in line with one another. If the angles of depression from the top of the sand pile to each of the rocks are 18° and 26°, how far apart are the rocks? ? Apply the rules regarding the use of significant digits when determining your answer. ? Distance between rocks = __________ ft
Fill in the blank(s) with the appropriate word(s).
Use the rules for addition of measurements to find the sum of the set of measurements. 14.574 cm6.89 mm34.96 cm316 mm
A. 82 cm B. 81.82 cm C. 80 cm D. 81.8 cm E. 120 cm