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faust18 [17]
3 years ago
10

Please help me, it’s very important

Mathematics
1 answer:
gayaneshka [121]3 years ago
3 0
2x2+6x+20 here is it
You might be interested in
X = x^2 + 4x + 4
gulaghasi [49]
You mean Y=x^2 + 4x + 4, this is quadratic function (convex parabola) which  standard form is y=ax^2+bx+c 

1. First we will find zero of the function, y=0 or as you like  intersection
    with x axis.
    y=0 =>. x^2+4x+4=0 => this is the square of the binomial  ( x + 2)^2 = 0
    => x + 2 = 0 => x= -2 In this case it's a touch point with x axis.
 2. Intersection with y axis  => If x=0 => y=4  (0, 4)
 3. The coordinate of vertex are x= - b/2a = - 4/2 = -2 and y=(4ac-b^2)/4a
      y= (4* 1*4 - 4^2)/ 4 = (16-16)/4= 0   Vmin ( -2, 0) this point is at same              time zero of the function. 
 4.  Domain:. Dx=R (field of real numbers)
 5.  Range:  y belong to interval ( - infinite, 0) or R-
 6.  Function's sign y>0 => x belong to intervals (-infinite, -2) U ( -2, +infinite)
 7.  Function's growth or decline 
      for x belong interval ( -infinite, -2) => function decline
      for x belong interval ( -2, +infinite) => function is growing

      Thats all !!!!!!






6 0
4 years ago
Alright another here we go, Please help!
yaroslaw [1]

Answer:

4x=y

Step-by-step explanation:

4x=y is your answer because if x is 5, like in the table, then 4(5) would equal 20, which is the y-value. It also works for every number in the table.

Hope this helps.

5 0
3 years ago
I need an answer! NOT A LINK!!! ASAP!
Nonamiya [84]

Answer:

im pretty sure its 14

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Working together, Shawn and Hector can install a tile floor in 6 hours. It would take Shawn 9 hours to do the job alone. What is
laiz [17]
The product of the sum of the their rates and the time it took them to finish the job should be equal to one whole job. This may be expressed by the equation,
                            (1/9 + r) x 6 = 1
Solving for the value of r gives an answer of r = 1/18. Thus, Hector does 1/18 of the job in 1 hour.
3 0
4 years ago
Read 2 more answers
Super easy question if ur looking for points :) 1 1/2 times 3
BARSIC [14]
1 1/2 x 3 is 4 1/2.....
7 0
3 years ago
Read 2 more answers
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