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vlada-n [284]
3 years ago
12

If y(x) = 2x-5, then f(4) is A. 17 B.5 C.4 D.3​

Mathematics
1 answer:
Nana76 [90]3 years ago
4 0

Answer:

i think the answer is 3

Step-by-step explanation:

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Find the vertex form of: y=2x^2-5x+13
Ket [755]
The vertex form of a quadratic function is:

 f(x) = a(x - h)² + k

The coordinate (h, k) represents a parabola's vertex.

In order to convert a quadratic function in standard form to the vertex form, we can complete the square.

y = 2x² - 5x + 13

Move the constant, 13, to the other side of the equation by subtracting it from both sides of the equation.

y - 13 = 2x² - 5x

Factor out 2 on the right side of the equation.

y - 13 = 2(x² - 2.5x)

Add (b/2)² to both sides of the equation, but remember that since we factored 2 out on the right side of the equation we have to multiply (b/2)² by 2 again on the left side.

y - 13 + 2(2.5/2)² = 2(x² - 2.5x + (2.5/2)²)

y - 13 + 3.125 = 2(x² - 2.5x + 1.5625)

Add the constants on the left and factor the expression on the right to a perfect square.

y - 9.875 = 2(x - 1.25)²

Now, we need y to be by itself again so add 9.875 back to both sides of the equation to move it back to the right side.

y = 2(x - 1.25)² + 9.875

Vertex: (1.25, 9.875)

Solution: y = 2(x - 1.25)² + 9.875

Or if you prefer fractions

y = 2(x - 5/4)² + 79/8
7 0
3 years ago
Im confused on this one !
Alex787 [66]

I believe that it would be the first one. They are looking for the distance from the y-axis, so the x value doesnt matter. 6 is 6 units away from the y-axis, and -6 is also 6 units away from the y-axis. Hope I helped!

6 0
3 years ago
Which of the options below does the month-end review process help with? Select all that apply.
Shkiper50 [21]

The month-end review process help with the following below:

  • Finding transactions with outstanding issues.
  • Dealing with unreconciled accounts.
  • Running payroll.
  • Identifying discrepancies with accounts and starting balances.

<h3>What is Month-end review process?</h3>

This is usually done by the accounting department of an organization and are involved in payrolling.

Outstanding transactions and accounts are also reviewed so as to ensure accuracy.

Read more about Month-end review process here brainly.com/question/24134045

#SPJ1

4 0
1 year ago
Read 2 more answers
In dividing an irregular shape into polygons it is permissible for the polygons to overlap
masya89 [10]
NO it is not possible when dividing an irregular shape to polygons to overlap. Every polygon would be broken up in piece.
6 0
3 years ago
Bro no one cares<br> Bro no one cares<br> Bro no one cares
Aleonysh [2.5K]

Answer:

bro no one cares

Step-by-step explanation:

8 0
2 years ago
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