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Cloud [144]
3 years ago
11

Which way will the parabola open? Explain.

Mathematics
2 answers:
Marizza181 [45]3 years ago
8 0
Our parabola open downward and therefore a is negative.

Explanation:
As value of a changes from positive to negative or from negative to positive, the direction of opening changes. For negative values of a we got negative parabolas that open downward. As the original formula y = x^2 we see that x^2 will always be positive because when you square a number it always gives positive value. Therefore the direction for which it will open, depends on value of a.
xeze [42]3 years ago
8 0

Answer:

The parabola is vertical (opens up or down).

Step-by-step explanation:

If the x is squared or if a is positive, the parabola opens up or to the right. If it is negative, it opens down or to the left. The vertex is at (h, k).

- Hope this helps!

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Write down the possible values of x.x is an interger.
Simora [160]

Answer:

-1, 0, 1, 2, 3

Step-by-step explanation:

To answer this you have to understand 2 main things

These are: the symbols and what an integer is.

An integer is simply a whole number. For example: 1, 10, 3 etc.

The symbols, <= (first symbol) and < (second symbol) are very important. These tell us the range X is in.

<= means less than or equal to.

< means less than.

So we can write: -1 is less than or equal to x and x is less than 4.

If we follow this and also keep in mind we only want whole numbers then we can see the lowest X can be is -1 and the highest it can be is 3 since it has to be less than 4.

Then it is also everything inbetween them which is:

-1, 0, 1, 2, 3

5 0
3 years ago
-3-9 would the answer be positive or negative
dalvyx [7]

Answer:

the answer would be negative, because when you subtract -3-9 you get -12

Hope I helped :)

7 0
3 years ago
The value of y varies directly with x If x equals 3 than y equals 21 what is the value of c when the value of y equals 105
mihalych1998 [28]

If y and x varies directly we can use a rule of 3 to find the missing x so:

\begin{gathered} 3\to21 \\ x\to105 \end{gathered}

and the equation will be:

\begin{gathered} x=\frac{3\cdot105}{21} \\ x=15 \end{gathered}

6 0
1 year ago
Which of the following is the correct factorization of the polynomial below?
Yuliya22 [10]
The answer is D. The polynomial is irreducible because 12 can’t be squared.
7 0
3 years ago
Suppose you start at the origin, move along the x-axis a distance of 6 units in the positive direction, and then move downward p
Cerrena [4.2K]

The coordinates of your position are <u>(</u><u>6</u><u>,</u><u> </u><u>0</u><u>,</u><u> </u><u>-4</u><u>)</u>.

3 0
2 years ago
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