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slava [35]
3 years ago
5

Peter opens a new bookstore and pays the book publisher $3.00 for each book he buys from them. The amount Peter pays is given by

F (x) = 3x, where x is the number of books purchased.
Mathematics
1 answer:
melisa1 [442]3 years ago
7 0
F(x) = 3x ; where x is the number of books purchased.

x  f(x)
0    0
1    3
2    6
3    9
4   12
5   15

I saw this problem and the instruction was to graph the function and show the domain and range. 

The domain is all the x-values while the range is all the y-values.
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Line a is formed by using the points -1,6 and 3,-2 Line B is formed by using the point -3,0 and 5,4.What linear equations can be
emmasim [6.3K]

Answer:

y  =  -x  + 5

y  =  x/2  + 3/2

Step-by-step explanation:

First we calculate the slope as difference between coordinates

a) P₁ ( -1 , 6 )   P₂  ( 3 , 2 )

m =  Δy/Δx      ⇒  m  =  (  y₂ - y₁ ) / ( x₂ - x₁ )  ⇒  m = (2 -6 ) / (3 -(-1))

m =  -4 /4  

m = -1

Now we have:

y - y₁  = m ( x - x₁ )    ⇒  y  -  6  = (-1) ( x - (-1))

y  -  6  =  -1 * ( x + 1 )   ⇒  y  -  6  =  - x - 1

y  =  -x  + 5

In the second case

Q₁  ( -3 , 0 )  Q₂  ( 5  , 4 )

Again we calculate the slope

m  =  Δy / Δx    ⇒  m  =  ( 4 - 0 ) / ( 5 - (-3))    ⇒  m =  4 / 8   ⇒ m = 1/2

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And

y - y₁  = 1/2 ( x - x₁ )   ⇒  y  -  y₁  = 1/2 ( x - (-3))   ⇒   y  - 0 = 1/2 * x + 3/2

y  =  x/2  + 3/2

6 0
3 years ago
Which equation has a graph with a vertex at (-1,-1)?
11111nata11111 [884]

y =  {(x  + 1)}^{2}  - 1

The one is a vertical translation of the parent function to the left of one

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making it -1.

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nydimaria [60]

Answer:

C and D

Step-by-step explanation:

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since 2 is the remainder

n=2x

then i^n=i^2x

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7 0
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