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
VLD [36.1K]
4 years ago
5

Jessica is asked to write a quadratic equation to represent a function that goes through the point (8, –11) and has a vertex at

(6, –3). Her work is shown below. –11 = a(8 – 6)2 – 3 –11 = a(2)2 – 3 –11 = 4a – 3 –8 = 4a a = –2 After Jessica gets stuck, she asks Sally to help her finish the problem. Sally states that Jessica needs to write the quadratic equation using the value she found for a, –2, and the point (8, –11). Evaluate Jessica’s work and Sally’s review to determine which statement is true.
1. Jessica did not solve for the correct value of a, but Sally’s review is correct.
2. Jessica did not solve for the correct value of a, and Sally’s review is incorrect.
3. Jessica solved for the correct value of a, but Sally’s review was incorrect.
4. Both Jessica’s work and Sally’s review are correct. The equation is f(x) = –2(x – 8)2 – 11.
Mathematics
2 answers:
Lostsunrise [7]4 years ago
8 0

Answer:

Jessica’s work is correct and Sally’s review is incorrect

Step-by-step explanation:

I'm just assume it's a vertical parabola we know that The equation of a vertical parabola in vertex for is equal to where (h,k) is the vertex In this problem we have point substitute To find the equation using the value of a and the vertex point so therefore

Jessica’s work is correct and Sally’s review is incorrect

vesna_86 [32]4 years ago
5 0

the answer is c. I just did the review

You might be interested in
Slove -2 1/3 - (-5) =
STatiana [176]

Answer:

which principle prevents a brach from abusing  its power

Step-by-step explanation:

4 0
3 years ago
If 8, x, 18 form a geometric sequence , find a value for x
katrin [286]

Answer: 13

Step-by-step explanation: It goes up by 5 so 8, 13, 18, 23, and etc

Please tell me if I'm wrong

4 0
3 years ago
Read 2 more answers
Explain and Prove that the sides of the triangles below are a right triangle.
sukhopar [10]
3.) 3, 4, 5
&
4.) 6, 8, 10
Those two are right triangles because when you add the squares of the first two it should give you the square root of the third number

a^2 + b^2 = c^2

So
3^2 + 4^2 = 5^2
9 + 16 = 25
25 = 25

6^2 + 8^2 = 10^2
36 + 64 = 100
100 = 100

Therefore they are right triangles

But 1 & 2 aren’t right triangles because when you add the squares of the first two number, it doesn’t equal to the square root of the third number.

Hope this helps!!
3 0
3 years ago
A car travels 50 km in 2 liters find
Savatey [412]
It can travel 125km with 5 liters
And 6 liters to travel 150 :)
5 0
3 years ago
Read 2 more answers
In how many different ways can someone arrange 6 books on a shelf
enot [183]
Number of ways = 6!
Number of ways = 6 x 5 x 4 x 3 x 2 x 1
Number of ways = 720

------------------------------
Answer: 720 ways
------------------------------
6 0
3 years ago
Read 2 more answers
Other questions:
  • Write the next two terms in the pattern. 11,18,25,32,_,_,
    13·2 answers
  • What is the arc length of the arc sub tended in a circle with radius 6 and an angle of 7 pi/ 8
    9·1 answer
  • Question 20:
    5·1 answer
  • What is the maximum volume of a pyramid that can fit inside a cube with sides that are 18 cm long?
    15·1 answer
  • Hey, so I'm taking a test from k12 and I don't understand what's 36/12?
    10·2 answers
  • Last summer, an ice cream shop sold a small ice cream for $1.25 and a large ice cream for $3.75. The ice cream shop decided to r
    15·2 answers
  • Adelphi is 34.3 miles east of sterling. The distance between Adelphi and sterling is
    14·2 answers
  • Sanai is planning to visit her aunt in 5 weeks. She has saved $365 but thinks the trip will cost $500. She plans to save the sam
    15·1 answer
  • In 2011 i sold 105276 tickets.
    10·1 answer
  • english has 26 different letters. how many consecutive words have to be selected in a book to have at least 5 that start with th
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!