cfrancisthe2nd cfrancisthe2nd
  • 03-05-2022
  • Mathematics
contestada

Rewrite the function by completing the square.

f(x)=x^2-4x-26

Respuesta :

gl1219
gl1219 gl1219
  • 03-05-2022

Answer:

[tex](x-2)^2-30[/tex]

Step-by-step explanation:

use the form [tex]ax^2+bx+c[/tex] to find the values of a, b, and c.

[tex]a=1, b= -4, c = -26[/tex]

consider the vertex form of a parabola

[tex]a(x+d)^2+e[/tex]

substitute the values of a and b into the formula [tex]d=\frac{b}{2a}[/tex]

[tex]d=\frac{4}{2(1)}[/tex]

simplify the right side.

find the value of e using the formula [tex]e=c-\frac{b^2}{4a}[/tex]

[tex]e=30[/tex]

Answer Link

Otras preguntas

I really need help with this question asap!
the perimeter of a rectangle is 40m. one of the lengths or the sides is 5m. find the lengths of the other 3 sides.​
Seperate 82 in two parts so that one of the parts is 3 times bigger than the other part
HAPPY NEW YEARS !!! CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST !!!
Anybody know the answer
Fencing costs £13.25 per metre.How much does 12.5 m cost?​
Explain two eating disorders and the consequences as well as avenues for help.
identify any five changes from surroundings involves energy change in the form of heat or light.
6 b 2 a 6 same result
What was a result of the Bible being translated into the vernacular? A. It made it more difficult for the average person to read the Bible. B. It made it easier