taytpTriadoinapapa
taytpTriadoinapapa taytpTriadoinapapa
  • 19-05-2016
  • Mathematics
contestada

What is the y-value of the vertex of the function f(x) = –(x – 3)(x + 11)?

The y-value of the vertex is

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 19-05-2016
expand
f(x)=-1x^2-8x+33

x coordinate of vertex is -b/2a in the form ax^2+bx+c=y
a=-1
b=-8
-(-8)/2(-1)=8/-2=-4
plug back in to get y value

y=-(-4^2)-8(-4)+33
y=-16+32+33
y=49

y value is 49
Answer Link

Otras preguntas

i need help pleaseeeeee
A store has an item listed for $48.95. On Saturday they are having a 20% off sale where they give a 20% discount to all items in the store. What is the sale pri
Given: cot32°=4/3 and cos44°=7/9 find sin62°
( brainliest & 30 points, serious answers only )Canada & the United States (US) What provinces and States run along the Canadian and US border? Create a
Select the correct answer. A company manufactures computers. Function N represents the number of components that a new employee can assemble per day. Function E
Use substitution to solve the following. y = 4x 2y + 2.5x = 105
Which of the following are examples of unstructured data? Select one or more: a) Phone Numbers b) Dates c) Credit Card Numbers d) Social Media e) Weather Channe
Help needed on beginner Latin homework. Shown underneath. Please help.Thanks! Complete the sentence with either of the words in brackets. a...............pecūni
what’s (2a) with an exponent of 6/5 in radical form?
Think Questions 1. Refer to one or more details from the text to explain why true or romantic love is more complex than lust. 2. Based on the psychotherapist's