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3 years ago

If f(-7)=14, what order pair does this represent?

Mathematics

1 answer:

uranmaximum [27]3 years ago

3 0

Answer:

(-7, 14)

Step-by-step explanation:

The function f(x) is equal to the y-coordinate. The value inside of the parenthesis is the x-coordinate, so it would be -7 in this problem.

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Determine the equation of a circle whose diameter has the endpoints (-1, 2) and (7.

Viefleur [7K]

Answer:

(x - 3)^2 + (y + 1) = 25

Step-by-step explanation:

First find the midpoint of the diameter, because that represents the center of the circle.

-1 + 7

The x-coordinate of the midpoint is xm = ---------- = 3

2 - 4

and the y-coordinate is ym = ---------- = -1

And so the center of this circle is at (3, -1).

Use the Pythagorean Theorem to determine the square of the radius:

square of radius = 4^2 + (-3)^2 = 16 + 9 = 25

And so the equation of this circle is (x - 3)^2 + (y + 1) = 25

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3 years ago

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What is the algebraic expression for: four less than three times the number of egg orders and six more than two times the number

Ira Lisetskai [31]

3n - 4 + 6 + 2n

I believe that's the answer!

5 0

3 years ago

Write 3x + 8x3 + 15 + 4x2 in standard form

Nadusha1986 [10]

Answer:

gcdshdgkcggcucjdchgjjkdcbkbdw

Step-by-step explanation:

8 0

3 years ago

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Please someone explain how to solve this piecewise function!!!! Im super confused

Xelga [282]

Answer:

From top to bottom:

$0, 1, 2, -8, -8$

Step-by-step explanation:

We are given the piecewise function:

$g(x) = \left\{ \begin{array}{ll} 0.5x+1 & \text{if } x \leq 2 \\ -8 & \text{if } x > 2 \end{array} \right.$

Row 1:

We want to find g(-2).

Since -2 is less than (or equal to) 2, we will use the first equation. Thus:

$g(-2)=0.5(-2)+1=-1+1=0$

Row 2:

Likewise, 0 is less than or equal to 2. We will continue to use the first equation:

$g(0)=0.5(0)+1=1$

Row 3:

2 is not less than 2 but it is equal to 2. So we will continue to use the first equation:

$g(2)=0.5(2)+1=1+1=2$

Row 4 and 5:

Both 4 and 6 are greater than 2. Thus, we will use the second equation. Therefore:

$g(4)=-8\text{ and } g(6)=-8$

7 0

3 years ago

HELP!! PLEASE!!! QUICK!!! 30 PTS!!!

FromTheMoon [43]

X + 2/3 = -2(4/5x-7)
Is equivalent to -2(x+2/3)=4/5x-7
So the answer would be A

8 0

3 years ago