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2 years ago

Y= -x^2+2x+1 i need help understanding

Mathematics

1 answer:

Eddi Din [679]2 years ago

7 0

Answer:

Does not factor; domain = -∞<x<∞, range = f(x) ≤ 2.

Step-by-step explanation:

Assuming your end goal is to factor the polynomial

$y=-x^{2} +2x+1$

If we use the guess and check method we can see that there is no way to factor this polynomial.

However, if you are looking for a domain and range we can graph it on a graphing calculator. Just by looking at the graph, we can see that the domain is all real numbers, or -∞<x<∞, and the range is f(x) ≤ 2.

I hope this helped!

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An item with an original price p dollars is on sale at 30% discount. Which expression is not equivalent to the price of the item

exis [7]

Answer:

p+_(n) + 70%

Step-by-step explanation:

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4 0

2 years ago

Laura created a website to create T-shirts. In the first month she put up her website she had only a single T-shirt order. Each

kiruha [24]

Laura received 144 orders over the first year

Solution:

Given function is:

f(n) = 2n - 1

Where, "n" is the month

In the first month she put up her website she had only a single T-shirt order

f(1) = 2(1) - 1 = 2 - 1

f(1) = 1

There are 12 months in a year

For the second month, and third month and so on, substitute n = 2, 3 and so on

f(2) = 2(2) - 1 = 4 - 1 = 3

f(3) = 2(3) - 1 = 6 - 1 = 5

f(4) = 2(4) - 1 = 8 - 1 = 7

f(5) = 2(5) - 1 = 10 - 1 = 9

f(6) = 2(6) - 1 = 12 - 1 = 11

f(7) = 2(7) - 1 = 14 - 1 = 13

f(8) = 2(8) - 1 = 16 - 1 = 15

f(9) = 2(9) - 1 = 18 - 1 = 17

f(10) = 2(10) - 1 = 20 - 1 = 19

f(11) = 2(11) - 1 = 22 - 1 = 21

f(12) = 2(12) - 1 = 24 - 1 = 23

Thus total orders received over first year:

Total orders = 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

Total orders = 144

Thus she received 144 orders over the first year

8 0

2 years ago

Brent has $26 when he went to the fair. After playing 7 games, he had $15.50 left. Solve 15.50 = 26 - 7p to find the price for e

AveGali [126]

Step 1: Simplify both sides of the equation.

15.5=26−7p

15.5=−7p+26

Step 2: Flip the equation.

−7p+26=15.5

Step 3: Subtract 26 from both sides.

−7p+26=15.5

-26 -26

−7p=−10.5

Step 4: Divide both sides by -7.

-7p = -10.5

/-7 /-7

Answer:

P = $1.5 (Price for each game)

Hope this helps!

~LENA~

3 0

3 years ago

Read 2 more answers

The ratio of a model building's dimensions to the building's actual dimensions is 1/20. If the height of the model is 18 inches,

Umnica [9.8K]

Answer: 360ft

Explanation:
x = 18/1/20
x = 18 x 20
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2 years ago

The smaller triangle is the image of the larger triangle after a dilation. The center of the dilation is (−3,−2). What is the sc

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Try this option:

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answer: 4

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2 years ago

Y= -x^2+2x+1 i need help understanding​

Y= -x^2+2x+1 i need help understanding