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
Nina [5.8K]
3 years ago
5

Match the range of the function f(x) = x2 + 2x − 1 to its domain. Tiles 2 -2 3 -3 Pairs 2 14 7 -1

Mathematics
1 answer:
viva [34]3 years ago
5 0
The domain is without restriction so x=(-oo, +oo)

The range has a minimum because this is a second order equation with a constant positive acceleration.

The minimum can be seen easiest by putting the equation into vertex form

y=x^2+2x-1

y+1=x^2+2x

y+1+1=x^2+2x+1

y+2=(x+1)^2

y=(x+1)^2-2  so the vertex is at the point (-1, -2), and this is the absolute minimum value for y or the range.  As x approaches positive or negative infinity, y approaches positive infinity:

y=range=[-2, +oo)
You might be interested in
(3x – 1)(2x +9)<br> Multiplying polynomials
ad-work [718]

We can use the FOIL method to simplify.

= (3x – 1)(2x + 9)

= (3x * 2x) + (3x * 9) + (-1 * 2x) + (-1 * 9)

= 6x + 27x + (-2x) + (-9)

= 33x - 11

Hope This Helped! Good Luck!

8 0
2 years ago
Read 2 more answers
choose the equation that shows a step in the process of completing the square on the given quadratic. y = x2 8x – 3 y = x2 8x 8
posledela
Y = x^2 + 8x - 3
y = x^2 + 8x + (8/2)^2 - 3 - (8/2)^2
y = x^2 + 8x + 16 - 3 - 16
3 0
3 years ago
Read 2 more answers
Special precision bolts are made by another machine. These are for jobs that require more exact measurements. The bolts must be
klio [65]

The solutions of the inequality is 7.99<x<8.01. I think this solutions means the radius of hole in the bolt or something along that, but I'm not sure.

3 0
2 years ago
What is the prime factorization for 36?<br> A. 22x32<br> B. 2x3x6<br> C. 6x6
ICE Princess25 [194]

Answer:

c. 6x6

Step-by-step explanation:

because 6x6 is =36

3 0
2 years ago
Read 2 more answers
Solve for x in the equation 3 x squared minus 18 x + 5 = 47.
ryzh [129]

Answer:

x= 3 +\sqrt{23}, 3 -\sqrt{23}

Step-by-step explanation:

You use the quadratic formula to get x= \frac{18+6\sqrt{23} }{6} ,\frac{18-6\sqrt{23} }{6}

Then you simplify and get the answers x= 3 +\sqrt{23}, 3 -\sqrt{23}

​​  

​​  

6 0
3 years ago
Read 2 more answers
Other questions:
  • Given: right triangle abc with altitude prove: a2 + b2 = c2 complete the paragraph proof. you can use the similar triangles form
    5·2 answers
  • Keith bought 3.4 pounds of peanuts on monday,2.5 pounds on tuesday, and 4 pounds on wednesday. he is going to divide them equall
    12·1 answer
  • Can I have help with number 7 please
    10·1 answer
  • G(x) = x2 + 3x - 2, find g(-2) Please Explain
    15·1 answer
  • 5/2x-3 is this a monomial, binomial, or trinomial
    13·1 answer
  • HELP!!!!
    7·1 answer
  • Solve and check:<br> y = x + 4<br> y = 3x
    5·1 answer
  • Help ASAP! And explain!
    7·1 answer
  • Mr. and Mrs. Smith plan to roof the cabin on
    10·1 answer
  • Which is the equation of a hyperbola with directrices at x = ±2 and foci at (5, 0) and (−5, 0)? y squared over 40 minus x square
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!