regents review

Question 1

asymptote

Answer 1

a line that continually approaches a given curve but does not meet it at any finite distance.

Question 2

domain

Answer 2

x-values

Question 3

range

Answer 3

y-values

Question 4

perfect square trinomial

Answer 4

(b/2)^2

Question 5

revenue

Answer 5

he income that a business has from its normal business activities

Question 6

radians

Answer 6

2pi/b

Question 7

no mention of degrees

Answer 7

use radians

Question 8

amplitude

Answer 8

the height from the mean

Question 9

period

Answer 9

the length of one full cycle, frequency

Question 10

imaginary number i

Answer 10

i = sq. rt. -1
i^0=1
i^1=i
i^2=-1
i^3=-i

Question 11

finding factor of polynomial

Answer 11

to find if x-a is factor, plug in x=a and if it’s zero, it is a factor

Question 12

probability of both

Answer 12

add both, subtract the “either”

Question 13

directrix

Answer 13

line above/below parabola, equal distance to focus

Question 14

focus

Answer 14

point in parabola, equal distance to directrix

Question 15

vertex for parabola formula 4p(y-k)=(x-h)^2

Answer 15

(h, k)

Question 16

growth rate

Answer 16

new=old(1+r)^years

Question 17

unit circle facts

Answer 17

(sq. 3/2, 1/2), (sq. 2/2, sq. 2/2), (1/2, sq. 3/2)
pi/6, pi/4, pi/3
30, 45, 60
cos = x sin = y