Solve the equation by graphing the related function.

x^2-9=0

I have no idea how to do this. Please help!

User Icon for Reiny Reiny answered
8 years ago

corresponding function:

y = x^2 - 9
which is a parabola opening upwards,
centre at (0,-9) and x-intercepts of ±3

I assume you know how to graph a curve like this.

solution : x = ±3

User Icon for Depressed Ford F-150 Depressed Ford F-150 answered
4 years ago

The answers to that assessment are as follows.

1. D
2. A
3. C
4. B
5. C
You're welcome. Don't be an idiot.

User Icon for fetallifestyle fetallifestyle answered
4 years ago

i got 10 questions

User Icon for 🥰 🥰 answered
4 years ago

I have 11 questions

User Icon for Someone <3 Someone <3 answered
2 years ago

For 10 questions, Unit 4 Quadratic Functions.

1. A. x=+3
2. D. no solution
3. C. x=0
4. B. x=+4
5. C. g=+5/2
6. B. b=+1/2
7. C. p=+12
8. A. z=+3
9. C. no solution
10. A. one solution

Don't listen to Depressed Ford.

User Icon for me me answered
2 years ago

someone <3 is right :)

User Icon for ghouliiana on lg ghouliiana on lg answered
2 years ago

both are right, someone <3 for the practice. and depressed ford for the following quick check.

User Icon for FCKconnexus FCKconnexus answered
1 year ago

guys someone<3 is 100% correct for the solving quadratic equations PRACTICE which has 10 questions but for the quick check, depressed ford isn't correct his answers give you a 2/5 40%

User Icon for parkjimin parkjimin answered
1 year ago

@someone<3 is 100% correct thanks

-parkjimin

User Icon for korinthia korinthia answered
1 year ago

for the following quick check (Solving Quadratic Equations) the answers are

(Question # - Letter Answer - Answer)
1 | C | +7
2 | D | no solution
3 | B | 12x
4 | B | 4 in
5 | C | 22

give this a thumbs up if it helped you so others know its true! <3

User Icon for :D :D answered
1 year ago

korinthia is right for the quick check

User Icon for Midnight Midnight answered
1 year ago

korinthia is right for the quick check