For this case we must find the inverse of the following function:
For them we follow the steps:
We change f (x) to y:
We exchange variables:
We solve for "y":
We add 1 to both sides of the equation:
We apply square root to eliminate the exponent:
We change y by 
:
Answer:
Option D
The answer is 56 people out of the 200
Answer:
(4, - 1)
(-1, 6)
Step-by-step explanation:
Given the expression :
3x+y<14
Test the opprions to find out the true statement.
(7, - 7)
3(7) + (-7) < 14
21 - 7 < 14
15 < 14 (not true)
(-1, 6)
3(-1) + 6 < 14
3 + 6 < 14
9 < 14 ( true)
(3, 6)
3(3) + 6 < 14
9 + 6 < 14 ( not true)
(4, - 1)
3(4) - 1 < 14
12 - 1 < 14 ( true)
(6,0)
3(6) + 0 < 14
18 < 14 ( not true)
now, b is -3, and a is 3
or in rectangular if you wish, y = -3 and x = 3.... on what quadrant is "y" negative and "x" positive? well, the 4th quadrant
so, using our reference angle, that'd be
so, let's use the first one
![\bf (3,3i)\implies \begin{array}{llll} r[cos(\theta)+i\ sin(\theta)]\\\\ 3\sqrt{2}\left[ cos\left( \frac{7\pi }{4} \right)+i\ sin\left( \frac{7\pi }{4} \right) \right] \end{array}](https://tex.z-dn.net/?f=%5Cbf%20%283%2C3i%29%5Cimplies%20%0A%5Cbegin%7Barray%7D%7Bllll%7D%0Ar%5Bcos%28%5Ctheta%29%2Bi%5C%20sin%28%5Ctheta%29%5D%5C%5C%5C%5C%0A3%5Csqrt%7B2%7D%5Cleft%5B%20cos%5Cleft%28%20%5Cfrac%7B7%5Cpi%20%7D%7B4%7D%20%5Cright%29%2Bi%5C%20sin%5Cleft%28%20%5Cfrac%7B7%5Cpi%20%7D%7B4%7D%20%5Cright%29%20%5Cright%5D%0A%5Cend%7Barray%7D)
