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zhannawk [14.2K]
3 years ago
12

How to find the inverse of a function

Mathematics
1 answer:
Studentka2010 [4]3 years ago
5 0
Switch the x and the y and solve for y 
eg inverse of 2y= 3x+1
swith x and y
2x=3y+1
now solve for y
y =(2x-1)/3
You might be interested in
Parking lot has 121 spots. Ratio of senior to junior is 7 to 4. How many spots go to each grade level?
Andrej [43]
I am going to build a chart this is best when using ratios 

              seniors    junior  total
                 7              4       
                 *?             *?     *?
    Totals                          121   

The way we fill out this chart is that we add the rows and multiply the columns. 

So we add 7 + 4 and fill it in our chart we get 11 

            seniors    junior  total
                 7              4       11
                 *?             *?     *?
    Totals                          121   

now to find the *? need to divide 121/11 to get *?

121/11 = 11

so now our chart looks like this 
            seniors    junior  total
                 7              4       11
                 11            11     11
    Totals                          121   

Now we multiply each column 

so
7 * 11  = 77
 4*11 = 44

now our chart look like this 

            seniors    junior  total
                 7              4       11
                 11            11     11
    Totals     77           44      121   

so seniors get 77 spaces 
and juniors get 44 spaces. 

6 0
3 years ago
Solve for v.<br> 3v = 42<br> Simplify your answer as much as possible.
pogonyaev

Answer:

V=14

Step-by-step explanation:

3v=42 divide both sides by 3. getting v=14

3 0
2 years ago
Joseph needs 345 cement blocks to build a wall 40 cm thick. He needs 205 cement blocks to build a wall 25 cm thick. Each block c
IrinaVladis [17]

9514 1404 393

Answer:

  $105

Step-by-step explanation:

The thicker wall takes 345 -205 = 140 more blocks. Each of those costs $0.75, so the added blocks will cost ...

  140 × $0.75 = $105

The thicker wall will cost $105 more.

7 0
3 years ago
Please help me! I’m giving brainliest to whoever is right first
adelina 88 [10]

Answer:

y = 10

x = 17

Step-by-step explanation:

4y - 3 = 37

4y = 37 + 3

4y = 40

y = 40 / 4

y = 10

3x - 9 = 42

3x = 42 + 9

3x = 51

x = 51 / 3

x = 17

<em>Hope that helps!</em>

6 0
3 years ago
Read 2 more answers
If f(x) = x^2 -5x +1 and g(x) =5x+4 what is the value of g•f (-2)
Arlecino [84]

Answer:

The value of gof (-2)=79

Step-by-step explanation:

We have

f(x) = x^2 -5x +1 \\\\f(-2) = (-2)^2 -5\times-2 +1 \\\\=15

Now we need to find

gof (-2)=g(15)

g(15) =5\times15+4\\\\=79

5 0
2 years ago
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