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Flura [38]
1 year ago
9

Y = x² - 4x convert from standard to vertex form​

Mathematics
1 answer:
Pepsi [2]1 year ago
6 0

Answer:

y = (x-2)^{2} -4

Step-by-step explanation:

To complete the square: add 4 to both sides because the product of 4 as 2 as the factor which 2 * 2 so 2^{2}

y +  ? = x^{2} - 4x + ?

y +  2^{2} = x^{2} - 4x + 2^{2}

y + 4 = x^{2} - 4x + 4

Now we can factor the expression

y + 4 = (x-2)^{2}

Move the 4 to the other side to isolate y which changes the sign

y = (x-2)^{2} - 4  

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The baker broke each of the cookies in half. She counted 6
densk [106]

Answer:

3

Step-by-step explanation:

6/2=3

six halves of cookies put the halves into pairs and you get 3

5 0
3 years ago
I need some serous help immediately
stepladder [879]
I’m assuming you are talking about number four. If you look at the line it provides you, the slope is -.5 and the intercept is zero. So all you have to do is rewrite the equation but subtract four from the right side and it will be parallel.
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Andrea had 32 problems to do for mathematics homework over a weekend. She did of the problems on Friday night, and on Saturday s
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4 0
2 years ago
Read 2 more answers
There are 765 marbles in a box. There are twice as many blue marbles as green marbles. There are three times as many red marbles
Digiron [165]
B=blue
g=green
r=red
2 times as many blue as green
b=2g
3 times as many red as blue
r=3b
subsitute 2g for b
r=3(2g)=6g
r=6g

r+g+b=765
so we subsitute
r=6g
g=g
b=2g

6g+g+2g=765
add like terms
9g=765
divide both sides by 9
g=85
subsitute
b=2b
b=2(85)
b=170

170 blue
5 0
3 years ago
Alice has $15 more than Barry. Charlene has only 2 times of the amount of Barry's money. If Alice has x dollars, how much money
natima [27]
X=alice
b=barry
c=charlene

x=15 more than b
x=15+b

c=2 times of b
c=2b

all together
x+c+b
15+b+2b+b
15+4b
they have 15+4b or 15+4 times of barry
if we want in terms of x
x=15+b
x-15=b

15+4(b)
15+4(x-15)
15+4x-60
4x-45

they have 4x-45 together
5 0
2 years ago
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