funderburk41 funderburk41

03-10-2016
Mathematics

contestada

vertex form of
y=x^2-4x-9

Respuesta :

apologiabiology apologiabiology

03-10-2016

complete the square
first isolate x terms
y=(x^2-4x)-9
complete square inside (take 1/2 of square of b )
-4/2=-2, (-2)^2=4
add 4-4 inside
y=(x^2-4x+4-4)-9
complete the square
y=((x-2)^2-4)-9
y=(x-2)^2-4-9
y=(x-2)^2-13

Answer Link

Otras preguntas

Which of the following transitional words is LEAST likely to be used in an essay that uses the cause and effect organizing principle? a. therefore b. thus c.

Select all that apply. Which of the following statements are true of the Good Samaritan laws? They are meant to discourage bystanders from helping accident vict

When energy is released from sugar molecules,many by - products are formed.Which by - Product is expelled from the cell? a.C b.CO2 c.H2 d.O2

Which feature of the Constitution was eventually created as a result of Anti-Federalists’ efforts? A. a bill of rights B. provisions for State sovereignty C. a

Which vitamin is primarily responsible for blood clotting? Select one: a. vitamin A b. vitamin C c. vitamin E d. vitamin K

Which ionic compound is used as a building material? 1.salt 2.limestone 3.magnesium oxide 4.iron oxide

Please select the word from the list that best fits the definition The stage in which you polish your writing and fix errors.

A plant with round seeds is crossed with another plant with round seeds. Round are dominant over oval seeds. When two heterozygous round-seeded plants are cros

A large telephone company has hired lobbyists to try to persuade lawmakers to reduce governmental regulation over the telecommunications industry. Why might the

The more resources you have to choose from during an open book test, the better you will do on the test because more information is available to you. a. True b.