Determine the amplitude of the function y = 2 cos x from the graph shown below: On a coordinate plane, a function curves down from (0, 2) through (1.5, 0) to (3, negative 2), and curves up.
a.
1
c.
3
b.
2
d.
4

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet