Is -2 + 4y +2=8x a direct variation equation

Answers

Answer 1
Answer:

Direct variation

Explanation:

Given –2 + 4y + 2 = 8x.

To find the given expression –2 + 4y + 2 = 8x is direct variation or not.

If y varies directly as x, then y = kx.

If y varies inversely as x, then y=(k)/(x)

⇒ –2 + 4y + 2 = 8x

Combine like terms together.

⇒ –2 + 2 + 4y = 8x

⇒ 4y = 8x

Divide both sides of the equation by 4, we get

y = 2x

Which is in the format of y = kx.

Thus y varies directly as x.

Hence, –2 + 4y + 2 = 8x is direct variation.


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Bryant walks 5/6 of a mile everyday. if he walks seven days a week, how many miles does he walk in a week

Answers

He walks 5 and 5/6 miles each week

X over 8 is greater than or equal to 1 .
Solve & graph

Answers


                                           x/8 > or = 1

Multiply each side by 8 :        x > or = 8

To graph this inequality:

-- Draw the line  x = 8

-- The inequality represents all the points on this line AND
all points in all of the area to the right of the line.


What is the fraction 0.60 in simplest form

Answers

3/5  That is the answer because 0.60 is 60/100 reduce to 30/5 reduce to 3/5

How many times does 6 go into 50

Answers

The division of 50 by 6 is 8, with a remainder of 2. Therefore, 6 goes into 50 eight times.

Division of Numbers

Division is the process of splitting a quantity into equal parts or determining how many times one number is contained within another number. During division of Numbers, there are some numbers you will divide without remainders and there are some with remainders.

The remainder is the amount left over after dividing as much as possible. If there is a remainder, you can choose to express the division as a mixed number (a whole number plus a fraction) or as a decimal.

Division is represented by this sign ÷ or /. There are dividends, divisor and quotient. The dividend is the number that you want to divide. It is the quantity that you are trying to split or distribute. The divisor is the number by which you divide the dividend.

The quotient is the result of the division and represents the number of times the divisor is contained within the dividend.

Learn more about division of Numbers here

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It goes in 8 times use division to work the problem. 50/6= 8.3 so it can go in 8 times fully

Inequalities               8-4x>-12

Answers

You subtract -8 from -12 and then you have -4x>-20 and when you divide a negative number the sign switches so you get X<5

Answer:

 x < 5

Step-by-step explanation:

8-4x>-12

One solution was found :

                  x < 5

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

                    8-4*x-(-12)>0

Step by step solution :

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  20 - 4x  =   -4 • (x - 5)

Equation at the end of step  1  :

Step  2  :

2.1    Divide both sides by  -4

Remember to flip the inequality sign:

Solve Basic Inequality :

2.2      Add  5  to both sides

            x < 5

Inequality Plot :

2.3      Inequality plot for

        -4.000 X  + 20.000  <  0

Write equations for the horizontal and vertical lines passing through the point (7, -1).horizontal line:


vertical line:

Answers

Check the picture below.

Horizontal line is y=-1
Vertical line is x= 7