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
snow_lady [41]
3 years ago
14

Find the quadratic function that has the vertex (4,5) and passes through the point (8,21) If possible, can you explain the work?

Thanks! *71 POINTS!*

Mathematics
1 answer:
Ganezh [65]3 years ago
8 0
Start by looking at the vertex form of a quadratic function, f(x) = a(x - h)^2 + k. The variables h and k are the values of the vertex. Plug those in to get f(x) = a(x - 4)^2 + 5. To find the variable a, plug in the point given for the x and y values. So, you get (21) = a((8) - 4)^2 + 5. Solve for a algebraically, and you get a = 1. Finally, plug everything in and simplify the equation. You should get that the quadratic function is f(x) = x^2 - 8x + 21. Hope this helps!

You might be interested in
NEED HELP WILL MARK BRANLYEST
BlackZzzverrR [31]

Answer:

The first of the rows should go with each other. The 36/125^3 does with the second one. The 6/125^3 goes to the third one. The last row goes with 8/125 cm^3

Step-by-step explanation:

6 0
2 years ago
Please help me i need help
kenny6666 [7]

Answer:

H

E

A

R

T

S

Step-by-step explanation:

easy

8 0
3 years ago
please i have been stuck on thos math problem for 123 minutes ago please help please I'm stressing out please I urgently need he
alisha [4.7K]

Answer:

it could be    1. c      2. a      3. d      4. b

or it could be the answers i did for last time in the pic: (that is my old account that got banned)

but i think the answers that are right are the ones i did rn of  1. c      2. a      3. d      4. b

8 0
3 years ago
set the equation up for "Eight less than the square of a number is the same as adding the number and four"
TEA [102]
X^2-8 = x+4 is your answer!
5 0
3 years ago
Help pleaseeeeeee, I need help
Arlecino [84]

Answer:

15, 60, and 61

Step-by-step explanation:

First we have to find the 3rd side length from 2 side length chosen. So let’s pick 8 meters and 11 meters, to find the third side length we use the Pythagorean theorem: c^2 = a^2 + b^2

c = 11^2 + 8^2 = 121 + 64 = 185 = 13.6

13.6 isn’t one of the answers so we can’t pick 11 & 8. Let’s try 11 & 15:

c = 15^2 + 11^2 = 225 + 121 = 346 = 18.6

18.6 isn’t one of the answers either. Let’s try 15 & 60:

c = 60^2 + 15^2 = 3600 + 225 = 3825 = 61.85

61.85 might be it but let’s try one more just in case:

c = 60^2 + 61^2 = 3600 + 3721 = 7321 = 85.6

Nope! That means 15, 60, and 61 are the answer. I hope this is correct!

5 0
2 years ago
Other questions:
  • (2x−5)2−.5x<(2x−1)(2x+1)−15
    8·1 answer
  • HELP ME!!! PLEASEEE!!!
    10·2 answers
  • 7(6+y)=(? x6) + (7 x ?)
    6·1 answer
  • Three friends go apple picking they pick 13 apples on saturday and 14 apples on sunday they share the apples equallyhow many doe
    14·1 answer
  • Solve in terms of d. <br> 6dh = 2y
    13·1 answer
  • suppose two different fractions with the same denominators are both less than 1 Can their sum equal 1? can their sum be greater
    11·1 answer
  • 47% of citizens in a district voted in the last election. 21% of citizens in the district are under 18. Being younger than 18 an
    11·1 answer
  • Based on this data, what is a reasonable estimate of the probability that the Texas Sharpshooters score exactly
    15·1 answer
  • I forgot what the definition of y-axis and x-axis was
    9·2 answers
  • F(x) = x². What is g(x)?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!