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
Nikitich [7]
3 years ago
13

(5 pts) A quadratic function f is given by f(x) = ax2 + bx + c where a is not 0. Select all

Mathematics
1 answer:
Vsevolod [243]3 years ago
8 0

Answers:

  • a) True. Plug in x = 0 and it leads to y = c. Therefore, the point (0,c) is on the parabola.
  • b) False. Plug in y = 0 and apply the quadratic formula. One x intercept may sometimes be x = c, but it could easily be other values as well. Or perhaps you may not get any real number solutions at all. See part d) below.
  • c) True. If a < 0, then the leading coefficient is negative. Overall, both endpoints will tend toward negative infinity to produce a parabola that opens downward.
  • d) False. The quadratic may have one x intercept or it may not have any x intercepts at all. It depends on what the discriminant d = b^2 - 4ac is equal to. If d < 0, then we have no x intercepts. If d = 0, then we have exactly 1 x intercept. If d > 0, then we have two different x intercepts.
  • e) True. The vertex's x coordinate is -b/(2a). If b = 0, then the x coordinate of the vertex is 0. The vertical line x = 0 is directly on top of the y axis.
You might be interested in
I need help! If you can help me with this I can mark you!
Alina [70]

Answer:

I think it is 82 degrees or 102 degrees depend if you pick the 10s or 100s

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Please help me!! Due today​
klasskru [66]

Answer:

Step-by-step explanation:

y = (-1/4)x - 4 has a y-intercept of (0, -4).  Place a dark dot at (0, -4).  

Now we use the info from the slope, -1/4:

Starting with your pencil point on the dot (0, -4), move the pencil point 4 units to the right and then 1 unit down.  You will now be at (4, -5).  Place a dark dot there.  

Then draw a straight, solid line through (0, -4) and (4, -5).

6 0
3 years ago
A rectangle on a coordinate plane has vertices Q(-1,1), R(6, 1), S(6-8), and T(-1,-8). What are the dimensions of the
slavikrds [6]

Answer:

the base length of the triangle is 4 units, u can count that. and the height of triangle is 2 units, thats the dotted line one. and the equation of triangle area is (length x height) divided by 2so in this case it'll be (4x2) /2=4 square units.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the median of the following set of data:
Troyanec [42]

Answer:

b

Step-by-step explanation:

The median is the middle value of the data set in ascending order. If there is no exact middle value then it is the average of the values either side of the middle.

Arrange the data in ascending order

48, 52, 54, 57, 57, 57, 61, 61, 65

                          ↑

The median of the data set is 57 → b

3 0
3 years ago
50+ POINTS I NEED HELP
olga nikolaevna [1]

Answer:

<u><em>21 yard line</em></u>

Step-by-step explanation:

Ok we start out on the 20 yard line, we need to add the yards together.

<em>We add the 6 to the 20:</em>

20+6=26

<em>Then we subtract the 8 yards from our new 26:</em>

26-8=18

<em>Then we add the 18 by 3:</em>

18+3=21

Therefore,

<em>The Answer is 21 Yard Line.</em>

Hope I could help, If you need some more assistance ask me!

8 0
3 years ago
Other questions:
  • Ana knows the perimeter of her backyard is 6x+14x. if the length of her yard is 2x+3x-7,what is the width of her backyard? answe
    7·1 answer
  • Change the line 3x − 8y = 5 into slope-intercept form.
    9·1 answer
  • Mr johnson sells erasers for 3 dollars each he sold 96 last week and sold 204 erasers this week about how much morr mone did he
    12·1 answer
  • Which number is not written in scientific notation??
    15·1 answer
  • Hakeem's rock collection has 25 fewer rocks than Claudia's collection. Hakeem's collection contains 125 rocks.
    15·2 answers
  • Do people who spend more time on social networking sites spend more time using Twitter? Megan conducted a study and found that t
    6·1 answer
  • I need help with number 18
    6·1 answer
  • Find the measures of &lt;1 and &lt;2 if &lt;3 = 78^0 and &lt;4 = 102^0.
    14·2 answers
  • The diameter of a circle is 14 inches. What is the area? Give the exact answer in simplest form
    11·2 answers
  • Find x if the ekvation is <br> x-3x+7x/2-1=9
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!