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oee [108]
3 years ago
9

Y=x^2-2 Input output X Y 1 4 8 10

Mathematics
1 answer:
Nuetrik [128]3 years ago
7 0

Answer:  -1, 14, 62, 98

<u>Step-by-step explanation:</u>

Plug each x-value into the equation and solve for y

\begin{array}{c|l||c}\underline{\quad x\quad}&\underline{x^2-2}&\underline{=\ y}\\1&1^2-2&=-1\\4&4^2-2&=14\\8&8^2-2&=62\\10&10^2-2&=98\end{array}

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This is lines, functions and systems. Graph the line with slope 1 passing through the point (4, 2).
anzhelika [568]

To graph the line we need two points; we already have one the point (4,2) now we need to find another one; to do this we get the equation of the line given by:

y-y_1=m(x-x_1)

where m is the slope and (x1,y1) are a point throught the line. Plugging the values given we have:

\begin{gathered} y-2=1(x-4) \\ y-2=x-4 \\ y=x-4+2 \\ y=x-2 \end{gathered}

Now we give a value to x and find the corresponding y. If x=0, then:

y=-2

hence we have the point (0,-2).

Now that we have two points (0,-2) and (4,2) we graph them on the plane and join them with a straight line, hence the graph is:

5 0
1 year ago
Alejandra gets paid 9 dollars per hour she works. If h is the total number of hours Alejandra works, which expression could be u
Lubov Fominskaja [6]

Answer:

If she worked 24 hours then she would get 216 cash in dollars.

Step-by-step explanation:

All you would have to do is multiply 9 by 24 and you would get 216 dollars. and i thin this is correct.

5 0
3 years ago
Find me the value of the variables. If the answers is not an integer, leave it in simplest radical form.
Kruka [31]

Answer:

Step-by-step explanation:

Y=18 and x=9 redical 3

3 0
3 years ago
(18 months). hi I'm gothy and I just needed help with this problem. you don't have to include the answer but I'd appreciate it​
natulia [17]

Answer:

  • $93.68

Step-by-step explanation:

<u>Price of computer:</u>

  • $1486.25

<u>Warranty </u>

  • $199.99

<u>Total</u>

  • $1486.25 + $199.99 = $1686.24

<u>Payment per month:</u>

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8 0
3 years ago
The larger of two numbers is five more than twice the smaller number. The sum of the two numbers is 38. Find the numbers.
Damm [24]

Answer:

I would set this up as:

let: lesser number = x

     greater number = 2x + 5

Restating the word problem:

lesser number + greater number = 38

        x           +  2x + 5             = 38

Solving:  3x + 5 = 38

                  - 5     -5

             ---------------

              3x      =  33

              ---          ---

               3            3

               x        =  11

Substitution for the greater number:

        2(11) + 5

          22    + 5

              27

8 0
3 years ago
Read 2 more answers
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