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3 years ago

Which statement is true about the function f(x)= -x?

Mathematics

2 answers:

Oxana [17]3 years ago

8 0

Answer:

Step-by-step explanation:

The domain of the graph is all real numbers.

defon3 years ago

8 0

The one that has the domain of all real numbers

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Please help me....I need it

nexus9112 [7]

Answer:

Volume: 3x2x4=24 so the volume is 24 Meter3

Surface area:

52 Square meter

7 0

3 years ago

Which number line plots the integers -12,-3,and 7 not sure

EleoNora [17]

Answer:

the first one I think

6 0

2 years ago

Read 2 more answers

Choose the graphic representation of the quadratic function f(x) = x2 – 8x + 24.

larisa86 [58]

Refer the attached figure for the graphic representation of the given quadratic equation.

Step-by-step explanation:

Given expression:

$f(x)=x^{2}-8 x+24$

To find:

The graphic representation of the given quadratic function

For solution, plot the graph to the given quadratic equation.

The standard form of the equation is

$y=a x^{2}+b x+c$

When comparing with given quadratic equation,

a = 1, b = - 8, c = 24

Axis of symmetry is $x=\frac{-b}{2 a}$

By applying the values, the axis of symmetry of given equation is

$x=\frac{-(-8)}{2(1)}=4$

The vertex form of quadratic equation is $f(x)=a(x-h)^{2}+k$

Where, (h,k) are the vertex.

Convert the quadratic equation into vertex form.

By completing the square,

$f(x)=x^{2}-8 x+24$

$f(x)=\left(x^{2}-2(4) x+4^{2}\right)-4^{2}+24$

$f(x)=(x-4)^{2}+8$

On comparison,

(h , k) = (4 , 8)

Now, plot the equation with vertex (4,8) [refer attached figure].

4 0

3 years ago

Write the equation in standard form. Identity the center and radius. x² + y2 + 8x-4y-7=0

Masteriza [31]

Answer:

See below

Step-by-step explanation:

Given equation:

x² + y² + 8x - 4y - 7 = 0

Convert this to standard form by completing the square:

(x - h)² + (y - k)² = r², where (h, k) - center, r - radius
x² + 2*4x + 4² + y² - 2*2y + 2² - 16 - 4 - 7 = 0
(x + 4)² + (y - 2)² - 27 = 0
(x + 4)² + (y - 2)² = 27
(x + 4)² + (y - 2)² = (√27)²

The center is (- 4, 2) and the radius is √27

3 0

2 years ago

Combine like terms to create an equivalent expression 2s+ (-4s) pls help

Sedaia [141]

Answer:

$- 2s$

Step-by-step explanation:

$2s - 4s \\ - 2s$

8 0

3 years ago