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nalin [4]
2 years ago
13

Y=x^2+bx+c;(-2,3)

Mathematics
1 answer:
Maksim231197 [3]2 years ago
8 0
<h3>Answer:  b = 4 and c = 7.</h3>

===============================================

Explanation:

Comparing y = x^2+bx+c to y = ax^2+bx+c, we see that a = 1.

The vertex given is (-2,3). In general, the vertex is (h,k). So h = -2 and k = 3.

Plug those three values into the vertex form below

y = a(x-h)^2 + k

y = 1(x-(-2))^2 + 3

y = (x+2)^2 + 3

Then expand everything out and simplify

y = x^2+4x+4 + 3

y = x^2+4x+7

We see that b = 4 and c = 7.

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Write and graph an equation that is perpendicular to the equation x-3y=6 and through point (2,-3)
Korvikt [17]

Answer:

y = mx + b   is slope-intercept form of the linear equation.

y - y1 = m(x - x1)   is point-slope form of the linear equation.

Ax + By = C  (A ≥ 0)   is standard form of the linear equation.

~~~~~~~~~~~

....

              1  

y – 5  =  ——  (x + 1)

              3  

         1             1

y  =  —— x  +  ——  +  5

         3             3  

                   1             16

(1)   y  =  ——  x  +  ——

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Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What percentage is 15 out of 17?
Ket [755]
88.23%

Simply plug 15/17 into you calculator 

and it will give you a decimal, in this case it should be .88235294...

simply move the decimal back to placements and you should have

88.235294... thats still a lot of numbers so just reduce it to 2 places after the decimal and add a percent sign

88.23%

and your done :) this works for any similar problems

I hope this helps

8 0
3 years ago
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bob and mark talk about their families. bob says he has 3 kids, the product of their ages is 72. Mark points out that there is s
Sonbull [250]
Given:
3 kids
72 is the product of their ages.
There is a youngest child.

This means that all three are of different ages. We need to factor 72 into 3 integers.
Let us use prime factorization:

72 ÷ 2 = 36
36 ÷ 2 = 18
18 ÷ 2 = 9
  9 ÷ 3 = 3

Prime factors are: 2 x 2 x 2 x 3 x 3    OR 2³ x 3²

3 ages.

eldest      = 3³ = 9
middle     = 2² = 4
youngest  = 2¹ = 2

2 x 4 = 8
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8 0
3 years ago
2 - 4n = -3n - 3 - 6 + 11
goblinko [34]

Answer:

0 is the answer

Step-by-step explanation:

8 0
2 years ago
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Trey is out shopping and sees that striped shirts are on sale for $25.00 each, and plaid pants are on sale for $22.50 each. He b
Alenkasestr [34]

Answer:

  $140

Step-by-step explanation:

You can add up the prices to find the total. Most of us find it easier to multiply the price by the number of items.

  cost of 2 shirts = (2)($25.00) = $50

  cost of 4 pants = (4)(22.50) = $90

The total was $50 +90 = $140.

8 0
3 years ago
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