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
pogonyaev
1 year ago
10

For the given equation, find the values of a, b, and c, determine the direction in which the parabola opens,and determine the y-

intercept. Decide which table best illustrates these values for the equation: y= 8x^2 - 8

Mathematics
1 answer:
pochemuha1 year ago
5 0
<h3>Answer:  Table D</h3>

a = 8; b = 0; c = -8; parabola opens upward; y intercept at (0, -8)

=========================================================

Reason:

The given equation is the same as y = 8x^2 + 0x - 8

Compare this to y = ax^2+bx+c

We see that

  • a = 8
  • b = 0
  • c = -8

This rules out choice C because the a,b,c values don't match perfectly.

The parabola opens upward because a > 0, aka 'a' is positive. A positive 'a' value makes the parabola form a positive smile (in contrast to 'a' being negative to make a negative frown). This rules out choice A.

The y intercept always occurs when x = 0. Plug it in to get

y = 8x^2 - 8

y = 8(0)^2 - 8

y = -8

The y intercept is located at (x,y) = (0,-8). This rules out choice B.

---------------------

Summary:

We've found that

  • a = 8, b = 0, c = -8
  • parabola opens upward
  • y intercept is at (0,-8)

All of these help us determine why choice D is the answer.

You might be interested in
A model is made of a car. the car is 3 meters long and the model is 3 centimeters long. what is the ratio of the length of the c
Delicious77 [7]
The answer is d. No probs! 
4 0
3 years ago
The formula for the area of a trapezoid is A=h(b1+b2). Express b1 in terms of A, h, and b2.
lorasvet [3.4K]
In order to find b1 from your formula stated we need to do few calculations
A=hb1+hb2, as you wee I multiply h with both bases( b1 and b2)
I will subtract hb2 from both sides
hb1=A-hb2
now I will divide my new expression by h
b1=(A-hb2)/h
8 0
2 years ago
Read 2 more answers
Geometry segment proofs​
Lemur [1.5K]

solving a linear equation we conclude that the value of x must be 6.

<h3>How to find the value of x?</h3>

On the statement we have the relations:

AB = BC

BC = CD

For the transitive property, then we have that:

AB = CD

Replacing the equations in the image, we get:

2x + 1 = 4x - 11

Solving this linear equation for x we get:

1 + 11 = 4x - 2x

12 = 2x

12/2 = x

6 = x

So yes, solving that linear equation we conclude that the value of x must be 6.

Learn more about linear equations:

brainly.com/question/1884491

#SPJ1

8 0
1 year ago
Find the equation of the line.<br> Use exact numbers.
Citrus2011 [14]

Answer:

y = 4x + -9

Step-by-step explanation:

The y intercept which is -9, is the point in which the graph crosses the x-axis

In order to find the slope we need to identify two clear points on the graph.

- (0, -9)

- ( 1, -5)

Now that we have our two points we need to find the distance between them.

As you can see on the attachment the distance between the two points is 4 units up and 1 unit to the right, therefore the slope is 4/1 = 4.

Final Answer: y = 4x + -9

3 0
2 years ago
What's an equivalent expression to 4(c+9)
sineoko [7]
4c + 36 because you have to multiple 4 x c which is 4c and then you have to multiply 4 by 9 which gives 4c + 36 (hope this helps)
6 0
2 years ago
Other questions:
  • If it's $8 for four bottles how much is each bottle?
    13·2 answers
  • The point P(x, y) is on the terminal ray of angle theta. If theta is between pi radians and 3pi/2 radians and csc theta= -5/2, w
    7·2 answers
  • I NEED HELP WITH THIS SUBJECT<br>​
    15·2 answers
  • maya is m years old. which expression shows how old she will be 4 years from now? question 5 options: 4m m 4m 4 – m m 4
    12·1 answer
  • Mitchell and his friends went to the candy store, where they can buy candy by the pound. Mitchell bought 1.2 pounds of candy. Hi
    9·2 answers
  • The blanks are the ones that are pointed please answer them thx!
    8·1 answer
  • The perimeter of the original rectangle is ______
    8·1 answer
  • Find the perimeter of ABCD
    12·1 answer
  • Does anyone understand this? i need help
    8·2 answers
  • Please i need help finishing this test i’ll give brainly to a correct answer
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!