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
Zielflug [23.3K]
3 years ago
12

Between which two ordered pairs does the graph of f(x) = 1/2x2 + x – 9 cross the negative x-axis? (–6, 0) and (–5, 0) (–4, 0) an

d (–3, 0) (–3, 0) and (–2, 0) (–2, 0) and (–1, 0)
Mathematics
1 answer:
lbvjy [14]3 years ago
3 0

Answer:

Between (-6,0) and (-5,0).

Step-by-step explanation:

When it crosses the x axis, it's an x-intercept. To find the x-intercept, set y (aka f(x)) to zero. The solutions to the equation are approximately 3.36 and - 5.36. Since you're finding the negative x-intercept, you only need the negative solution - 5.36. This is in between (-6,0) and (-5,0).

You might be interested in
A) Write the sequence of natural numbers which are multiplied by 3 ?
Volgvan

Answer:

a) 3, 6, 9, 12, 15,...,3\cdot n, b) 4, 7, 10, 13, 16,...,3\cdot n +1, c) Both sequences are arithmetic.

Step-by-step explanation:

a) The sequence of natural numbers which are multiplied by 3 are represented by the function f(n) = 3\cdot n, n\in \mathbb{N}. Let see the first five elements of the sequence: 3, 6, 9, 12, 15,...

b) The sequence of natural numbers which are multiplied by 3 and added to 1 is represented by the function f(n) = 3\cdot n + 1, n\in \mathbb{N}. Let see the first five elements of the sequence: 4, 7, 10, 13, 16,...

c) Both sequences since differences between consecutive elements is constant. Let prove this statement:

(i) f(n) = 3\cdot n

\Delta f = f(n+1) -f(n)

\Delta f = 3\cdot (n+1) -3\cdot n

\Delta f = 3

(ii) f(n) = 3\cdot n +1

\Delta f = f(n+1)-f(n)

\Delta f = [3\cdot (n+1)+1]-(3\cdot n+1)

\Delta f = 3

Both sequences are arithmetic.

8 0
3 years ago
Please please please help
Elina [12.6K]
Median of (72 82 92 93 94 97 98 102)
Median: 93.5
MAD : 7.125

Median of ( 53 59 64 65 65 66 67 69)
Median : 65
MAD : 3.75
4 0
2 years ago
A man is filling an empty 5-gallon bucket with water at a constant rate. there are 2.4 gallons of water in the bucket after fill
r-ruslan [8.4K]

Answer: The answer is 0.2

Step-by-step explanation: 2.4g / 12 minutes

0.2g/minutes

5 0
3 years ago
What is the equation of a parabola with vertex (0,0) and focus (0,4)?<br> Draw its graph on the grid
svp [43]
Focus of a parabola: 4p(y-k)=(x-h)^2 where vertex (h,k) p is the distance from vertex to focus
4*4(y-0)=(x-0)^2 \\ 16y=x^2 \\ y= \frac{1}{16}x^2

3 0
3 years ago
What is the decimal equivalent for 3/10?
Artyom0805 [142]
The decimal equivalent of 3/10 is .3
5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help!!! Make a box ­and ­whisker plot of the data.  24,18,29,21, 16,23,13,11 
    15·2 answers
  • Please help! Algebra 1 math Guaranteed brainliest!
    10·1 answer
  • Which are vertical angles?
    10·2 answers
  • What is 6.2 x 105 in scientific notation?
    13·2 answers
  • Circle 1 is centered at (−4, 5) and has a radius of 2 centimeters. Circle 2 is centered at (2, 1) and has a radius of 6 centimet
    6·1 answer
  • WILL GIVE BRAINLET<br><br> 5/6 + 7 1/3
    14·2 answers
  • How do u multiply polynominals?
    10·1 answer
  • What is the equation, in point-slope form, of the line that has a slope of 6 and passes through the point (–1, –8)? a. y+8 = 6 (
    5·2 answers
  • The spinner is spun twice. whats the probability of the arrow landing on three and then an odd number?
    15·1 answer
  • What are the zeros of f(x) = x2 - 8x+16?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!