Without graphing, determine the x-intercepts and vertex of the quadratic function f(x)=x²+11x+18. Show all of your work.

1 answer:

5 0

Answer: https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:standard-form-quadratic/v/ex3-completing-the-square

Step-by-step explanation: This will help you a lot

You might be interested in

What is the area a a circle when the circumference is 3.50

Lapatulllka [165]

The area of the circle would be 0.97

6 0

4 years ago

50 pts! Factor the expression over the complex numbers. x^2+52

Bas_tet [7]

$x^2+52=\\\\x^2-(-52)=\\\\(x-\sqrt{-52})(x+\sqrt{-52})=\\\\(x-\sqrt{4\cdot13 \cdot(-1)})(x+\sqrt{4\cdot13\cdot(-1)})=\\\\(x-2\sqrt{13}i)(x+2\sqrt{13}i)$

8 0

3 years ago

Read 2 more answers

Please help me. It's urgent

siniylev [52]

Answer:

a) 7/5

Step-by-step explanation:

$y-\frac{y-1}{2}=1-\frac{y-2}{3} \\Through\ the\ butterfly\ method\ of\ resolving\ denominators\ ,\\\frac{2y-(y-1)}{2} = \frac{3-(y-2)}{3} \\\frac{2y-y+1}{2} = \frac{3-y+2}{3} \\\frac{y+1}{2} =\frac{5-y}{3} \\3(y+1)=2(5-y)\\3y+3=10-2y\\3y+2y=10-3\\5y=7\\y=\frac{7}{5}$

5 0

3 years ago

Anyone know this, its rlly hard

Anarel [89]

Answer:

......................................................................................................

Step-by-step explanation:

8 0

3 years ago

20 POINTS!! Please help asap ive reposted this 3 times and i only have a little time left! thank you so much! please answer all

Evgen [1.6K]

Answer: 5. AE

6. 6cm

7. 20 in

8. Angle DCF

Step-by-step explanation:

3 0

3 years ago