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 3/ 4 of 6 / 7?
Vika [28.1K]
3/4 of 6/7.    The of means multiplication.

= 3/4  *  6/7.  2 into 4 is 2 and 2 into 6 is 3.
 = 3/2 * 3/7    No other number can divide, so we multiply out.
=9/14

That's the answer.
6 0
3 years ago
Read 2 more answers
Marcus, Shaun, and Tristan each invested into new business. They invested 1 point
Schach [20]

Shaun invested $176,250 into the new business.

Marcus invested half of the $940,000 so the amount that Shaun and Tristan invested is:

= 940,000 / 2

= $470,000

Shaun and Tristan invested in the ratio 3:5.

The amount that Shaun invested is:

<em>= (Ratio of Shaun / Sum of the ratios) x Amount both invested </em>

= (3 / (3 + 5 )) x 470,000

= 3/8 x 470,000

= $176,250

In conclusion, Shaun must have invested $176,250 into the business.

<em>Find out more at brainly.com/question/771006.</em>

4 0
3 years ago
Line F passes through the points (7, 13) and (9, -3). What is the slope of a line parallel to line F?
madreJ [45]
13+3/7-9
16/-2
-8
A) -8
6 0
3 years ago
What is 100 + 4200 + 50 rounded to the nearest ten thousand
Finger [1]
100+4200 is 4,300 4,300+50 is 4,350 if you rounded that to the nearest 10,000 it's 10,000 Explain cause I think you're missing something from the question
4 0
3 years ago
Tom went on a bike ride to the store 3 miles away. If it took Tom 12 of an hour to get there and 23 of an hour to get back, what
anzhelika [568]

Answer: 0.1714 miles / hour

Step-by-step explanation:

Given the following :

Distance to the store = 3 miles

Time taken to get to store = 12 hours

Time taken to return = 23 hours

The average rate of speed for the trip =?

Average Speed = total distance traveled / total time taken

Total distance traveled = 2 × 3 miles = 6 miles

Total time taken = 12 + 23 = 35 hours

Average speed = 6 miles / 35 hours

Average speed = 0.1714 miles / hour

3 0
2 years ago
Other questions:
  • Jane has a gift card with a balance of $100 She buys several t-shirts that cost $15 each After the purchases her gift card balan
    10·1 answer
  • b. Find the probability that two or fewer heads are observed in three tosses. (Round your answer to three decimal places.) c. Fi
    14·1 answer
  • In order to survive, organisms must maintain stable conditions in their bodies, even though their external environments are alwa
    15·2 answers
  • Solve the inequality. –10d ≥ –70
    15·1 answer
  • Sixty percent of the customers who go to Sears Auto Center for tires buy four tires and 22% buy two tires. Moreover, 12% buy few
    7·1 answer
  • HOW TO ROUND TO TWO DECIMAL PLACES ON THIS QUESTION?
    14·1 answer
  • How many positive integers n satisfy the following condition: (130n)^50 &gt; n^100 &gt;2^200
    5·2 answers
  • Calculate the area of triangle ABC with altitude CD, given A (−3, −4), B (−6, 2), C (0, 0), and D (−4, −2). (5 points)
    11·2 answers
  • Please help with my math assignment
    7·1 answer
  • Amy was scheduled for 12 intervals this week. One her first interval, she had a technical issue that prevented her from working
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!