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bagirrra123 [75]
3 years ago
14

Which function is the inverse of f(x) = 2x + 3 ? Help

Mathematics
2 answers:
bearhunter [10]3 years ago
7 0

Answer:

The inverse is 1/2x -3/2

Step-by-step explanation:

y =2x+3

Exchange x and y

x = 2y+3

Solve for y, subtracting 3 from each side

x-3 = 2y+3-3

x-3 =2y

Divide each side by 2

(x-3)/2 = 2y/2

1/2x - 3/2 =y

The inverse is 1/2x -3/2

oksano4ka [1.4K]3 years ago
7 0

Answer:

x= x/2-3/2

Step-by-step explanation:

i hope this helps ''whole lotta love'' NUNU

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Which equation has the same solution as this equation?
lesya [120]

Answer:

3rd Option is correct.

Step-by-step explanation:

Given Equation:

x² - 16x + 12 = 0

First We need to find solution of the given equation.

x² - 16x + 12 = 0

here, a = 1   , b = -16  &  c = 12

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\frac{-(-16)\pm\sqrt{(-16)^2-4(12)}}{2}

x=\frac{16\pm\sqrt{256-48}}{2}

x=\frac{16\pm\sqrt{208}}{2}

x=\frac{16\pm4\sqrt{13}}{2}

x=8+2\sqrt{13}\:\:andx=8-2\sqrt{13}

Now,

Option 1).

( x - 8 )² = 144

x - 8 = ±√144

x - 8 = ±12

x = 8 + 12 = 20   and x = 8 - 12 = -4

Thus, This is not correct Option.

Option 2).

( x - 4 )² = 4

x - 4 = ±√4

x - 4 = ±2

x = 4 + 2 = 6   and x = 4 - 2 = 2

Thus, This is not correct Option.

Option 3).

( x - 8 )² = 52

x - 8 = ±√52

x - 8 = ±2√13

x  = 8 + 2√13   and x = 8 - 2√13

Thus, This is correct Option.

Option 4).

( x - 4 )² = 16

x - 4 = ±√116

x - 4 = ±4

x = 4 + 4 = 8  and x = 4 - 4 = 0

Thus, This is not correct Option.

Therefore, 3rd Option is correct.

8 0
3 years ago
PLEASE HELP WITH 17 and 18
Zinaida [17]
17
linear has 1 as highest exponent
D has x^2
D is not linear



18. find slope
(y2-y1)/(x2-x1)=(-1-2)/(0-4)=-3/-4=3/4
y=3/4x+b

B is answer
8 0
2 years ago
Given data below, what is the mean absolute deviation? <br> 58,88,40,60,72,66,80,48
JulijaS [17]
Mean is 64 and the mean absolute deviation is 12.5
3 0
3 years ago
Which irrational number is closest to the number 5?
blsea [12.9K]

Answer:

I believe it is right by looking at this picture, but I am not certain

7 0
3 years ago
The sum of x and y is 7. The value of y is three more than the value of x. Write a system of equations to model this.
Ilia_Sergeevich [38]

Answer: x= 2 , y= 5 (5+2=7)

Step-by-step explanation:

I don't really know how to put it into an equation- but here's your values?? Sorry if this didn't help ):

6 0
3 years ago
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