Answer the question or write an explanation.What is the difference between the graphs of y < mx + b and y ? mx + b?
What will be an ideal response?
The boundary line of y < mx + b is a dashed line. The boundary line of y ? mx + b is a solid line.
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Identify the type of surface represented by the given equation. 
+ 
= 
A. Elliptical paraboloid
B. Elliptical cone
C. Hyperbolic paraboloid
D.
| Ellipsoid |
Solve the problem.A baseball pitcher throws a baseball with an initial speed of 138 feet per second at an angle of 20° to the horizontal. The ball leaves the pitcher's hand at a height of 4 feet. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?
A. x = 129.68t, y = -16t2 + 47.2t + 4 5.725 sec, 1.475 sec, 282.48 feet B. x = 129.68t, y = -16t2 + 47.2t + 4 2.863 sec, 1.475 sec, 3.985 feet C. x = 129.68t, y = -16t2 + 47.2t + 4 6.065 sec, 1.475 sec, 34.81 feet D. x = 129.68t, y = -16t2 + 47.2t + 4 3.032 sec, 1.475 sec, 38.81 feet
Perform the indicated operation.
- 
A. 
B. 4
C. 
D. 4x
Find a formula for the inverse of the function described below.A size 10 dress in Country C is size 40 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = x + 30
D. f-1(x) = x - 30