1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Diano4ka-milaya [45]
3 years ago
13

What is the vertex? y=2x^2+28x-8

Mathematics
2 answers:
ra1l [238]3 years ago
5 0
Fist convert the equation to vertex form

y = 2(x^2 + 14x) - 8
 y = 2 [(x + 7)^2 - 49] - 8
y = 2(x + 7)^2 - 106

So the vertex is at (-7,-106)
Ghella [55]3 years ago
3 0
Put in math terms, the equation we are given is y = 2x² + 28x - 8

This equation is set up in standard form.  Standard form is ax² + bx + c.  In order to find the vertex, we'll complete the following equation:
-b / 2a
-28 / 2 (2)
-28 / 4
-7

Next, we'll just put -7 into the equation in place of x.

2(-7)² + 28(-7) - 8
2(49) -196 - 8
98 - 204
-106

So the vertex is (-7, -106).  Have fun plotting that.

Hope this helps!
You might be interested in
What is the area of the regular polygon?
BartSMP [9]

Answer:

You could use the polygon area formula OR here's an easier solution

We draw the lines DC and DE

Angle ADC = 120°

Triangle ADC is a 30 60 90 triangle

In such a triangle Line AE = hypotenuse * sq root (3) /2

Line AE = 3 * 0.8660254038  = 2.5980762114

Line DE = 1.5

Area of Triangle ADE = .5 * 1.5 * 2.5980762114 =

1.9485571586   square meters and entire area of Triangle

ABC = 6 * 1.9485571586

which equals 11.6913429513  square meters

Step-by-step explanation:

6 0
3 years ago
1. Find the value of x.<br> 2. Find the value of y.
DiKsa [7]

Answer:

5y + 85 = 180 \\ 5y = 10 - 85 \\ 95 \div 5 = 19 \\ 5x + 95 = 180 \\ 5x = 180 - 95 \\ 5x = 85 \\ x = 17

5 0
2 years ago
Read 2 more answers
The sum of three numbers is 26. The second number is twice the first and the third number is 6 more than the second. Find the nu
inessss [21]
The numbers are 4,8, and 14 because 4+8+14=26 an 4x2=8 and 8+6=14
7 0
3 years ago
Which describes how to graph g (x) = RootIndex 3 StartRoot x minus 5 EndRoot + 7 by transforming the parent function?
ratelena [41]

Answer:

f(x) =\sqrt[3]{x}

Step-by-step explanation:

Hello!

Considering the parent function, as the most simple function that preserves the definition. Let's take the function given:

g(x) = \sqrt[3]{x-5}+7

To have the the parent function, we must find the parent one, let's call it by f(x).

f(x) =\sqrt[3]{x}

This function satisfies the Domain of the given one, because the Domain is still (-\infty, \infty) and the range as well.

Check below a graphical approach of those. The upper one is g(x) and the lower f(x), its parent one.

4 0
3 years ago
G = 1, h = 2<br><br> 7 + g − 8 + 2h + 4g
Slav-nsk [51]

Answer:

7+1-8+2(2)+4(1)

= -1+4+4

=7

5 0
2 years ago
Other questions:
  • Carlos had $65.00 in his checking account. By mistake he wrote out a check for $82.00. By how much is his checking account overd
    10·1 answer
  • I am a number between 60 and 100 my ones digit is two less than the digit in my ten. I'm a prime number what is my number?
    13·1 answer
  • RSM HOMEWORK HELP!!! PLEASE HELP ME ASAP!!
    5·1 answer
  • Please answer questions 6 and 7 please
    5·1 answer
  • What is the value of X
    11·2 answers
  • Need help will give 14 points
    8·1 answer
  • HURRY THIS IS MY LAST QUESTION<br> What is the simplified form of the expression?
    10·1 answer
  • I'm just learning about this help please<br><br>794.561 x 10 2​
    6·1 answer
  • Please help!! im very confused
    10·2 answers
  • Three varieties of coffee Coffee​ A, Coffee​ B, and Coffee C are combined and​ roasted, yielding a 55​-lb batch of coffee beans.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!