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

Where and when did Martin Luther King Jr. die?
Sentence using "preliminary"? Please use an easy one so I can actually draw it, too :PThanks in advance :)
Donald Johanson, Tom Gray, and others discovered a hominid that lived in East Africa__________ million years ago and nicknamed her Lucy, whose scientific name t
what is the first 12 numbers in pi?
What energy is transfomed that takes place you lifting a chair?
what is 54 times 3 times 71 minus 45 plus 102 divided by 6 times 25 subtracted by 34 times 141 plus 32 subtracted by 67? Also put 578402/10856 in simplest form.
How many hydrogen atoms are represented in the formula (CH3)2CH2?
4x^2-28x+49=5 solve the quadratic by completing the square
solve the following problem: (12×10^9)÷(6×10^5)
I have been stuck with this one, and i would like to how to solve this. In each case, determine whether line AB is parallel or perpendicular to CD. (a) A(0, 0),