3 years ago

Which of the following best describes the graph of y=-x^2

Mathematics

2 answers:

astraxan [27]3 years ago

8 0

Answer:

Step-by-step explanation:

to draw the graph of y = - x²............(1)

the above given equation is the equation of parabola.

now, comparing this equation (1) will general equation of parabola which is

x² = 4 a y

a = -1/4

this means the parabola vertex is at origin (0,0)

parabola will be open downward.

the graph shown is the required graph.

AlexFokin [52]3 years ago

6 0

Show me the graphs. I have the answer.

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The product of two consecutive odd integers is 1 less than four times their some. find the two integers.

nignag [31]

2 consecutive odd integers.....x and x + 2.....the product means multiply....the sum means add.

x(x + 2) = 4(x + x + 2) - 1
x^2 + 2x = 4(2x + 2) - 1
x^2 + 2x = 8x + 8 - 1
x^2 + 2x = 8x + 7
x^2 + 2x - 8x - 7 = 0
x^2 - 6x - 7 = 0
(x - 7)(x + 1) = 0

x - 7 = 0 x + 2 = 7 + 2 = 9
x = 7

x + 1 = 0 x + 2 = -1 + 2 = 1
x = -1

there can be 2 answers for this....
(1) 7 and 9
(2) -1 and 1

7 0

3 years ago

What fraction of an hour is 33 minuets in the simplest form

zhannawk [14.2K]

Ok.

So an hour contains 60 minutes.

The fraction is therefore,

$\dfrac{33}{60}=\boxed{\dfrac{11}{20}}$