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
RSB [31]
2 years ago
14

I don't understand this, can somebody please explain it to me?

Mathematics
1 answer:
Artyom0805 [142]2 years ago
5 0
Looking at the equation, you could see that it is in vertex form. Vertex form looks like this: y=a(x-h)^2+k where a is the slope to find the first point away from the origin and (h,k) is the vertex. So, the vertex is (3,-1). The first point away from the origin is up two, over one, so the slope is 2. This means that a is 2. One way you could check this is by putting 2 in for a. If you put it into standard form, it would be 2x^2-12x+17. To find the x in the vertex when the equation is in standard form we use -b/2a. So it would give us 3 for x. If we put in 3 for x, we get -1 for y, so the vertex is (3,-1). This means that a is 2. Sorry for this lengthy answer, hope it helps.
You might be interested in
A club raised 175% of its goal for a charity. The club raised $763. What was the goal?
IceJOKER [234]

Answer: The clubs goal is to raise  $436.

Step-by-step explanation:

175%  * x  = 763     where x is the goal  

1.75 *x  = 763

1.75x = 763

x= 436

3 0
3 years ago
YOU HAVE TO MATCH THEM !!
OleMash [197]
Point A. (1,6)
point B.(7,8)
point C (6,3)
3 0
2 years ago
Read 2 more answers
An aquarium contained an equal number of horseshoe crabs and sea stars. After 15 horseshoe crabs were removed and 27 sea stars w
KATRIN_1 [288]

Answer:

45 horseshoe crabs and 45 sea stars

Step-by-step explanation:

The aquarium initially contained x crabs and x sea stars.

"After 15 horseshoe crabs and 27 sea stars are removed the ratio of horseshoe crabs to sea stars is 5:3"

(x-15):(x-27) = 5:3

(x-15)/(x-27) = 5/3

3(x-15) = 5(x-27)

3x-45 = 5x-135

90 = 2x

x = 45

5 0
2 years ago
find the probability of at least 3 successes in a 3 trials of a binomial experiment i which the probability of successe is 50%
katrin2010 [14]

each trial is independent so do

.5 x .5 x .5 or .5^3

.125 is the probability.

7 0
3 years ago
In simple terms, how do u factor a polynomial by distribution? for example " 36a^2 + 24a?​
rewona [7]

Answer:

6a (6a + 4)

Step-by-step explanation:

What is the highest number that goes both into 36 and 24? That is 6. What else do they have in common? The letter a

So 6a(6a + 4)

4 0
1 year ago
Other questions:
  • B is the midpoint of ZA. find the length of ZA
    5·1 answer
  • 3/4 times 7, find product as an improper fraction
    12·2 answers
  • A set of points that form a line are called a _ _ _ _ _ _ _ _ _ _ _ _ _ pattern.
    10·1 answer
  • in a harris poll adults were asked if they are in favor abolishing the penny . Among the responses, 1243 answeered no 481 answer
    5·1 answer
  • Starting with 195 grams of a radioactive isotope, how much will be left after 3 half-lives?
    10·1 answer
  • Here is a polygon on a grid. An L shaped figure on a square grid. Draw a scaled copy of this polygon that has a perimeter of 30
    5·1 answer
  • Don Williams uses his small motorboat to go 5 miles upstream to his favorite fishing spot. Against the current, the trip takes 1
    12·2 answers
  • What is the value of 4)1/8 divided by 5)1/2
    14·1 answer
  • Saul made some extra money last year from a part-time job. He invested part of the money at 2% with four times as much invested
    9·1 answer
  • Write a function for the line with a slope of 5 that passes through the point (2, 1). Enter the correct equation in the box.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!