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igor_vitrenko [27]
3 years ago
15

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

Mathematics
2 answers:
lianna [129]3 years ago
8 0

Answer:

y = 1/2x - 3/2

Step-by-step explanation:

The easiest way to find the inverse is to switch x and y and solve for y.

y = 2x + 3

x = 2y + 3 (Switch)

x-3 = 2y (Subtract y from both sides)

x/2 - 3/2 = y (Divide both sides by 2)

klemol [59]3 years ago
8 0

Answer:

The inverse is 1/2x -3/2

Step-by-step explanation:

y = 2x+3

To find the inverse, exchange x and y

x = 2y+3

Solve for y

Subtract 3 from each side

x-3 = 2y+3-3

x-3 =2y

Divide each side by 2

x/2 -3/2 = 2y/2

1/2x -3/2 =y

The inverse is 1/2x -3/2

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Can someone please help for brainlest
Scilla [17]

Answer:

answer would be the new area wil be 1/2 of the old area

Step-by-step explanation:

I'm pretty sure it's right hope this helps

8 0
2 years ago
How do i solve divide 5/8 by 50%
Ede4ka [16]
50% is \frac{50}{100}
We have two ways to do this, pick your favor:
either by fractions:
\frac{5}{8} ÷ \frac{1}{2}
(\frac{50}{100} =  \frac{1}{2}
Multiply by the reciprocal of \frac{1}{2} which is 2(flip it)

\frac{5}{8} × 2 = \frac{5}{4} = 1.25

Or change them to decimals:
\frac{5}{8} = 0.625
\frac{50}{100} = 0.5

0.625 ÷ 0.5

0.5 I 0.625
multiply by 10 to make it easier to divide(it still gives us the same answer)
0.5 × 10 = 5
0.625 × 10 = 6.25
     1.25
5 I 6.25
    -5
     12
    -10
       25
      -25
         0

0.625 ÷ 0.5 = 1.25

7 0
2 years ago
Please anyone help me with this please!!?​
Nataly [62]

Answer:

I think it's (-3, 1)

Hope this helps! :)

7 0
3 years ago
How to substitute x=-2 and x=5 into 2x^2+6-20=0 to check my work
Komok [63]
First answer (x=-2)
...
(2)[(-2)^2]+6-20
2(4)+6-20
8+6-20
14-20
<em>-6 (answer)
</em><em>
</em><em />Second answer (x=5)
...
(2)[(-5)^2]+6-20
2(25)+6-20
50+6-20
56-20
<em>36 (answer)
</em>Hope this helps!
4 0
3 years ago
Y-5=-1/2(x+7) (find the slope)
sashaice [31]

It's the slope-point formula:

y-y_1=m(x-x_1)

We have:

y-5=-\dfrac{1}{2}(x+7)

Therefore, the slope m=-\dfrac{1}{2}

7 0
3 years ago
Read 2 more answers
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