The options for the first one. A.4 B.-4 C.0 D. both -4 and 4 the options for the second one. A.3 B.-2 C.2 D. both 2 and -2
the options for the second third. A. x - intercepts B. Zeros of the function C. Roots of the functions D. All of above

 15) D     16) D         17) D

Step-by-step explanation:

15) option D

when y = 2, x = -4 and x = +4

16) option D

when y = 0, x = -2 and x = +2

17) option D

when y=0, the x-values are the zeros.

The points are on the x-axis so are the x-intercepts.

The x-values can be found using the Quadratic Formula, which are also called the roots.

D

D

D

correct answers

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)