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

Find area of the triangle

Multiply Decimals - Tutorial - Level E Choose the correct product. 3.2 x 8.54 = ? 2732.8 2.7328 273.28 27.328

A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas reaction vessel. The vessel is a stainless-steel cylinder that

Which turning point would best start an era called "westward expansion"? A. The Civil War B. The signing of the Constitution C. The American Revolution D. The L

These bags are used to play a game. In this game, you choose one of the bags and then choose one slip from that bag. If you choose Bag A, and the number you cho

why am i alive,no one cares,i need help, but i don't want it

Many more earthquakes occur along the San Andreas Fault in California than in other parts of the United States. Scientists claim that these earthquakes are caus

Which inequality has -25 in its solution set? A. y + 11 > -9 B. y - 17 Less-than-or-equal-to -46 C. 30 Less-than-or-equal-to y + 5 D. y + 20 > -30

Here are the first four terms of an arithmetic sequence. 5 12 19 26 Write down an expression, in terms of n, for the nth term of the sequence.

A bowl of ice cream is sitting on a table. Which is NOT conduction? A. The sunlight streaming through the window melts the ice cream. B. The bowl is cold becaus