1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lubasha [3.4K]
3 years ago
11

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

Mathematics
1 answer:
Mrrafil [7]3 years ago
5 0
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
You might be interested in
Slope=2 goes through (-2,2)<br> What is the equation?
astraxan [27]

Answer:

y= 2x+6

Step-by-step explanation:

the formula of a line is y = mx+b

so just sub everything in to find b

(-2,2) - (x,y)

y= mx +b (your slope, 2 is subbed into mx)

y=2x+b

2=2(-2) +b

2= -4 +b

2+4= -4+4 +b

6=b

therefore the slope being mx and b=6

the equation is y=2x+6

5 0
3 years ago
Collin is making a bulletin board and note center. He is using square cork tiles and square dry-erase tiles. One of every 3 squa
Lisa [10]
Well 12 divided by 3 is 4 so there will be 4 cork squares.
5 0
3 years ago
C (5,-2) is translated using the rule (x-3,y+4) what are the coordinates for the new point?
dusya [7]
This question is essentially telling you to move the point (5, -2) over three units, and up four units. That means subtract three units from the x-coordinate and add four units to the y-coordinate. So (5 - 3, -2 + 4) --> (2, 2). The coordinates for the new point are (2, 2).
8 0
3 years ago
Read 2 more answers
3 2/3 + 2.3 (the three is repeating) and the answer choices are
Ne4ueva [31]

Step-by-step explanation:

please check and rewrite ur question

7 0
3 years ago
Read 2 more answers
Which The following is a residual plot from a regression of a variable with the independent variable x.
katen-ka-za [31]

Answer:

Yes, because the plot shows no apparent pattern.

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Find the area of the figure
    8·1 answer
  • Hellooo please help
    15·1 answer
  • Which expression represents the composition [g o f o h](x) for the functions below?
    11·1 answer
  • Help, please. I’m confused!
    9·1 answer
  • A piece of cheese is in the shape of an isosceles right triangular prism. The triangular base is 4 cm and the height is 2 cm. Th
    9·1 answer
  • What value must replace the "?" in order for this polynomial to be expressed as a difference of squares?
    11·1 answer
  • Someone please help and choose correct answer
    14·1 answer
  • Guys plssssssss! I want to spend time today and tomorrow with my fam before they go back to Washington
    9·2 answers
  • Big box brand computers have 1/4
    9·1 answer
  • Find the slope of the line that contains the pair of points: (6,3)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!