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

should tragic events be publicly memorialized? list 3 reasons why
Which equation can be used to find what percent 14 is of 125? A.. 125 = 14p b. 14 = 125p c. 14p = 125p d. 125(14) = p
The diameter of a circular garden is 16 feet what is the approximate area of the garden
How to answer this question because i don’t understand
Write a paragraph that explains why many young men risked their lives as pilots in the Great War
What is a state legislators most important job​
Which equation calculates the number of 13-foot pieces that can be cut from a piece of wood that is 7 feet long?
How would the graph of the function y=x2-8 be affected if the function were changed to y=x2-3 A) the graph would shift 3 units down B) the graph would shift 5
definition of definite​
NO RIGHT OR WRONG (as long as it makes sense) What differences and similarities do boys and girls have? Why do you think boys and girls are treated differently?