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elixir [45]
3 years ago
13

What is the vertex of the quadratic function f(x) = (x - 3)(x - 2)?

Mathematics
1 answer:
Grace [21]3 years ago
6 0

Answer:

(\frac{5}{2} , -\frac{1}{4} )

Step-by-step explanation:

<h2><u>Lesson : Finding vertex from quadratic functions ,</u></h2><h2><u /></h2>

Given:

f(x) = (x - 3)(x - 2)

"Vertex"

Find the x intercepts by using the zero product property,

(x - 3)     (x - 2)  =  0

x = 3       x = 2

X-int = (3,0) , (2,0)

Now find the y intercepts by factoring the equation ,

(x - 3)(x - 2)

x * x

x^2

x * -2

x^2 -2x

-3 * x

x^2 -2x -3x

-3 * -2

x^2 -2x -3x + 6

Combining like terms:

x^2 -5x + 6

Replace x with zero,

0^2 -5(0) + 6

6

y intercept = (0,6)

Now graph :

Graph shown

Find vertex -  (\frac{5}{2} , -\frac{1}{4} )

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Determine the equation of the circle graphed below.
Diano4ka-milaya [45]

Answer:

(x - 6)^2 + (y - 2)^2 = 4

Step-by-step explanation:

Required

The equation of the circle

The equation of a circle is:

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

Where:

Center = (h,k)

radius \to r

From the graph, we have

(h,k) = (6,2)

r = 2

So:

(x - h)^2 + (y - k)^2 = r^2 becomes

(x - 6)^2 + (y - 2)^2 = 2^2

(x - 6)^2 + (y - 2)^2 = 4

6 0
3 years ago
Which of the following is irrational?
Aliun [14]

Answer:

Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers. This is opposed to rational numbers, like 2, 7, one-fifth and -13/9, which can be, and are, expressed as the ratio of two whole numbers.

8 0
3 years ago
You have 200 meters of fencing. What triangle will result in the maximum fence-able area? What is that area?
ikadub [295]

Answer:

It will be an equilateral triangle and the area is 1924.5 sq. meters.

Step-by-step explanation:

If the total length of the fencing of 200 meters is utilized then the perimeter of the triangle will be 200 meters.

Now, we know that the type of triangle that gives the maximum area for a given perimeter is an equilateral triangle.

So, the equilateral triangle with a perimeter of 200 meters will have side lengths of \frac{200}{3} meters.

Now, the area of an equilateral triangle with sides a units is given by \frac{\sqrt{3}}{4} a^{2} sq. units.

So, the area of the above equilateral triangle will be = \frac{\sqrt{3}}{4}\times (\frac{200}{3})^{2} = 1924.5 sq. meters. (Answer)

7 0
4 years ago
The cost of 5 cartons of fresh cream is $8.75. What is the cost of 11 such cartons?
ss7ja [257]

Answer:

$19.25

Step-by-step explanation:

First I divided $8.75 by 5 to find the cost of a single carton which is $1.75.

Then I multiplied $1.75 by 11 to get an answer of $19.25.

3 0
3 years ago
Can you help me answer 1 2 and 3
Zepler [3.9K]
1) 1/20 to the power of 4
2) 8 to the power of 2
3) 7.5 to the power of 3

hope this helped :)

8 0
3 years ago
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