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KATRIN_1 [288]
3 years ago
8

Answer to the best of your ability,first CORRECT answer gets top rating

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
6 0
Y=x-2

Hope this helps :)
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Find vertex of f(x)=(x+3)(x-5)
astra-53 [7]

The x coordinate of the vertex will be the average of the two zeros, here -3 and 5, so x=(-3+5)/2 = 1, f(1)=(1+3)(1-5) = -16.

Answer: (1, -16)

Let's do it some other ways.  How about completing the square to turn f in to vertex form?

f(x) = (x+3)(x-5) = x² - 2x - 15 = (x² - 2x + 1) - 1 - 15 = (x-1)² - 16

and now we can read off (1, -16) as the vertex.

The other method is the vertex is x= - b/2a =  - (-2)/2(1) = 1.

Three methods, same answer. Good.

4 0
2 years ago
Read 2 more answers
I need help ASAP ! Please
Ymorist [56]

Answer:

Step-by-step explanation: I hope you understand this better

7 0
2 years ago
If 3/2 divided by 1/4 =n, then n is between
Mamont248 [21]
3/2 / 1/4 = 3/2 * 4/1 
3*4= 12
2*1= 1
n= 12/1 or 12

Hope this helps! 
6 0
3 years ago
How do we know a given number in the radical is whether rational or irrational​
raketka [301]

number is described as rational if it can be written as a fraction (one integer divided by another integer). A number is irrational if it cannot be written as a fraction. The decimal form of an irrational number does not terminate or recur.

6 0
3 years ago
Which point gives the vertex of f(x) = x2 - 4x + 21?
Goryan [66]

Answer:

Brainleist!

Step-by-step explanation:

vertex (h,k)

h= -b/4a

k= c -b^2/4a

solve and you get (2,17)

4 0
2 years ago
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