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3 years ago

Write an equation for a direct variation that includes the point (2,-6)

Mathematics

2 answers:

igomit [66]3 years ago

8 0

Y = -3x
hope it helps

work: -6 divided by 2 is -3, therefore y = -3x

notka56 [123]3 years ago

6 0

The is Answer: y=-3x

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Easy points for geometry

Law Incorporation [45]

The answer is D: (6, -13)

Step by step:
X is translated 2 units to the right
Y is translated 8 units downs

Substitute 4 for the x value to
Substitute -5 for the y value
( (4) + 2, (-5) - 8 )
4+2=6
-5-8= -13
Answer: (6, -13)

Hope this helps!

5 0

2 years ago

What is the function y=2(x-4)^2-2 written in standard form

elena-s [515]

Answer:

$y = 2(x - 4) {}^{2} - 2 \\ y = 2x {}^{2} - 8 {}^{2} - 2 \\ y = {2x}^{2} - (8 \times 8) - 2 \\ y = {2x}^{2} - 64 - 2 \\ y = {2x}^{2} - 66 \\ \\$

3 0

3 years ago

Problem #1: A group of 5 people went white water rafting. They spent a total of

ale4655 [162]

$750

They spent 6 hours white water rafting.

$50x5=250

$250- $1000=$750

5 0

3 years ago

Please help me! I need this to complete my math hw

babymother [125]

Answer:

Step-by-step explanation:

You "complete the square" by adding the square of half the x-term coefficient. Here, that is ...

((-2)/2)² = 1 . . . . value added to complete the square

If you want to keep 0 on the right, you must also subtract this value:

x² -2x -36 = 0

x² -2x +1 -36 -1 = 0 . . . . . . add and subtract 1 on the left

(x -1)² -37 = 0 . . . . . . . . . . . written as a square

4 0

4 years ago

Select the correct answer from each drop-down menu.

mr_godi [17]

Answer:

correct option for first blank is 5/4 and for second blank is $\frac{ 3i\sqrt{7}}{4}$

i.e m= $\frac{5}{4}\pm\frac{ 3i\sqrt{7}}{4}$

Step-by-step explanation:

The given equation

$m^2 - \frac {5m}{2} = \frac{-11}{2}$

and we have to find m= ______ ± ________

We can use quadratic formula to solve this question.

The above equation can be written as: $m^2 - \frac {5m}{2} + \frac{11}{2} = 0$

and the formula used will be:

$m= \frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Putting values of a= 1, b= -5/2 and c= 11/2 and solving we get: $m=\frac{-\frac{-5}{2}\pm\sqrt{{(\frac{-5}{2})}^2-4(1)(\frac{11}{2})}}{2(1)}\\\\m=\frac{\frac{5}{2}\pm\sqrt{(\frac{25}{4})-22}}{2}\\m=\frac{\frac{5}{2}\pm\sqrt{(\frac{-63}{4})}}{2}\\m= \frac{\frac{5}{2}}{2}\pm\frac{\sqrt{(\frac{-63}{4})}}{2}\\m= \frac{5}{4}\pm\frac{\sqrt{-63}}{4}$

Since there is - sign inside the √ so $\sqrt{-1}$ is equal to i and we have to divide $\sqrt{63}$ into its multiples such that the square root of one multiple is whole no so,

$\sqrt{63}$ = $\sqrt{9}* \sqrt{7}$ = $3* \sqrt{7}$

Putting value of $\sqrt{63}$ and $\sqrt{-1}$

the value of m= $\frac{5}{4}\pm\frac{ 3i\sqrt{7}}{4}$

so, correct option for first blank is 5/4 and for second blank is $\frac{ 3i\sqrt{7}}{4}$ .

7 0

3 years ago