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
Olin [163]
2 years ago
10

What is the equation of the quadratic function that has x intercepts of -2 and 9?

Mathematics
1 answer:
gayaneshka [121]2 years ago
3 0

Answer:

f(x) = (x - 9)(x + 2) = x^2 - 7x - 18

Step-by-step explanation:

If the x-intercepts are -2 and 9, then the factors of this quadratic are (x + 2) and (x - 9).  Multiplying these two factors together, we get:

f(x) = (x - 9)(x + 2) = x^2 - 9x + 2x -18, or

f(x) = (x - 9)(x + 2) = x^2 - 7x - 18

You might be interested in
What is the measure of DHF in circle H? <br> 270<br> 90<br> 220<br> 130
Natalka [10]

Answer: 220

Step-by-step explanation: 130 degrees + the 90 degree angle = 220 degrees

Hope this helps:)

3 0
3 years ago
Select all the expressions equivalent to (4x⁵)(5x⁶).
Liula [17]

Step-by-step explanation:

= 4 {x}^{5}  \times 5 {x}^{6}

= (4 \times 5) {x}^{5 + 6}

= 20 {x}^{11}

3 0
3 years ago
Subtract the cube root of the product of h and 3k from the square of the sum of p and q​
ehidna [41]

Answer:

(p + q)²            -          ∛(h·3k)   or   (p + q)² - ∛(h·3k)  

Step-by-step explanation:

Cube root of x:  ∛x

Product of h and 3k:  h·3k

Sum of p and q:  p + q

*****************************

From (p + q)²      subtract ∛(h·3k)      This becomes, symbolically:

=>       (p + q)²            -          ∛(h·3k)

3 0
3 years ago
A boat rental company has two kinds of boats, rowboats and motorboats. The expressions below represent the cost,
malfutka [58]

Answer:

  • B. 9x + 22

Step-by-step explanation:

<u>You need to find the difference:</u>

  • 17.50x + 25 - (8.50x + 3) =
  • 17.50x - 8.50x + 25 - 3 =
  • 9x + 22

Correct one is B

5 0
3 years ago
Read 2 more answers
The point (-7, -24) is on the terminal ray of angle θ which is in standard position. A student found the six trigonometric value
12345 [234]

Answer:

the first one

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Solve: 9^8-x= 27^x-3
    14·1 answer
  • What is 485,783 rounded to its greatest place
    11·2 answers
  • Write the exact value of the area of a square with a side length of √30 square units? *
    7·1 answer
  • Really really really need help PLEASE!!!!!!
    10·1 answer
  • You are building a birdhouse that will have a volume of 128 in^3. the birdhouse will have the dimensions shown
    13·1 answer
  • 7. V-63<br> Square root of -63
    5·1 answer
  • I need to find the percentage of students who ride the bus
    12·1 answer
  • Find a number c such that the polynomial
    7·1 answer
  • Sam mows a ¼ of a lawn in ½ of an hour. At this rate, how long will it take him to finish one lawn?
    12·2 answers
  • Rubin has 6 rolls of pennies containing 50 coins each
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!