Algebra
Engus
Identifying the Vertex
Try it
The vertex form of a quadratic function is fx) = a(x-h2 + k. What is the vertex of each function? Match the
function rule with the coordinates of its vertex
f(x) = 5(x - 5)2 + 9
1 (-5, -6)
f(x) = 9(x - 5)2 + 6
(5.-9)
f(x) = 9(x + 5)2 - 6
f(x) = 6(x – 5) - 9
f(x) = 6(x + 9) - 5
Done

Step-by-step explanation:

Compare the given functions to the vertex form. Match parts to find the values of h and k. The vertex is (h, k).

Vertex form: f(x) = a(x -h)^2 +k

__

f(x) = 5(x - 5)^2 + 9; h = 5, k = 9; vertex: (5, 9)

f(x) = 9(x - 5)^2 + 6; h = 5, k = 6; vertex: (5, 6)

f(x) = 9(x + 5)^2 - 6; h = -5, k = -6; vertex: (-5, -6)

f(x) = 6(x – 5)^2 - 9; h = 5, k = -9; vertex: (5, -9)

f(x) = 6(x + 9)^2 - 5; h = -9, k = -5; vertex: (-9, -5)

step-by-stp

the correct answer is the section c

the clues that signal the reader should change tone are the punctuation marks, the grammatical signs. for example, the quotation marks at the beginning of something someone else said literally or the exclamation marks.

the tone of the first line of dialogue until "gettysburg" is a kind tone, a tone of advise. the narrator is trying to the other person in doing something he or she obviously is finding hard to do by giving a piece of advise and bringing up a memory of a successful similar case.

the clue that the reader understand how to read the word "bang" is the exclamation mark. it gives the word a surprise tone, a strong accent.

the best tone for reading the word "bang" is an exciting tone, a surprise one, even a loud one.

the words that should be read with a formal tone are the ones that give factual information. the sentence: mister lincoln couldn't think of anything to say at the gettysburg" gives information about an event and it needs to be read formally, also, when the narrator wants to transmit calmness, a formal and slow tone is needed, because people also transmit messages with the vibrations of our voices and tones.