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Ierofanga [76]
3 years ago
9

What is the vertex of the graph of y = –x2

Mathematics
2 answers:
REY [17]3 years ago
7 0

Answer:

Vertex : ( 0, 0).

Step-by-step explanation:

Given  : y = –x².

To find: What is the vertex of the graph.

Solution : We have given parabolic equation :  y = –x².

Vertex form of parabola: y = ( x -h)² + k.

Where, ( h ,k )  are vertex.

On comparing y = –x² with  y = ( x -h)² + k.

h= 0 , k= 0.

Vertex : ( 0, 0)

Therefore, Vertex : ( 0, 0),

dolphi86 [110]3 years ago
6 0
The parabola goes down(makes a sad face) because it is negative. The answer is 0,0
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Step-by-step explanation:

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12a+6b equivalent expression
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Answer:

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Step-by-step explanation:

The given expression is

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To find the equivalent expression of the given one, we just have to factor.

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3 years ago
Riley is saving up to buy a new television. She needs a total of $1,049.77. Riley has saved $200.79 already and earns $77.18 per
Xelga [282]

11 weeks are required for Riley to work to save enough money to buy the new television

<h3><u>Solution:</u></h3>

Given that Riley needs a total of $1,049.77

Riley has saved $200.79 already and earns $77.18 per week at her job

To find: Number of weeks Riley need to work to save enough money to buy the new television

Remaining amount needed = $1,049.77 -  $200.79

Remaining amount needed = $ 848.98

Let "n" be the number of weeks Riley need to work to save enough money to buy the new television

Also she earns $77.18 per week at her job

1 week ⇒ $ 77.18

"n" weeks ⇒ $ 848.98

Therefore, by cross multiplication,

n \times 77.18 = 1 \times 848.98\\\\n = \frac{848.98}{77.18}\\\\n = 11

Therefore 11 weeks are required for her to work to save enough money to buy the new television

<h3><u>Method 2:</u></h3>

<em>Total amount = amount already saved + ($77.18 per week at her job)("n" weeks)</em>

1,049.77 = 200.79 + (77.18)(n)

1049.77 - 200.79 = 77.18n

848.98 = 77.18n

n = \frac{848.98}{77.18}

n = 11

Therefore 11 weeks are required for her to work to save enough money to buy the new television

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3 years ago
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Step-by-step explanation:

basically you look at the place value so

66.21 is basically the same as 66.210 then you look at the lowest number that can round UP to 66.210 which would be out of 1 to 9 would be 5 so the smallest number that can round up to 66.210 is 66.205 hope this helped :D

4 0
3 years ago
A type of Conic where the plane is tilted and intersects only on one cone to form a bounded curve.
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