Which shows 4x 2y = –16 in slope-intercept form? a. y = 2x - 8 b. y = -2x - 8 c. y = 1/2x - 8 d. y = 1/2x - 16

QUESTION POSTED AT 19/08/2019 - 05:56 PM

Answered by answersmine AT 19/08/2019 - 05:56 PM

-4x both sides
2y=-4x-16
2y/2=-4x/2-16/2
y=-2x-8
so it's A
Post your answer

Related questions

Pls help me Factor x^2−4x+4 thx

Find the factors 
The factor is -2
Finally equation:
(x-2)(x-2)

ANSWERED AT 23/09/2019 - 04:25 AM


QUESTION POSTED AT 23/09/2019 - 04:25 AM

How to find percent of change#16

To calculate the percentage increase: First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. If your answer is a negative number then this is a percentage decrease.

ANSWERED AT 23/09/2019 - 04:25 AM


QUESTION POSTED AT 23/09/2019 - 04:25 AM

Use the graph to state the solution for the system. (In other words, what is the solution for the system?) x+2y=4 (line a) 3x-2y=4 (line b)

(2,1) is the solution because its where they both intersect..

ANSWERED AT 23/09/2019 - 04:25 AM


QUESTION POSTED AT 23/09/2019 - 04:25 AM

On a recent day, 8 euros were worth $9 and 24 euros were worth $27. Write an equation of the form y = kx to show the relationship between the number of euros and the value in dollars.

Y = kx
We have to find k value, so lets say x is euros and y is American dollars
so we have
9 = k(8)
k = 1.125
so the equation will be  y = 1.125x
to prove it use another value given
y = 1.125x
y = 1.125 (24)
 y = 27
Thus 24 euros is 27 dollars.
Hence the equation y =1.125x is correct.          

ANSWERED AT 23/09/2019 - 04:25 AM


QUESTION POSTED AT 23/09/2019 - 04:25 AM

You are given the table below. x 4 8 12 16 20 f(x) 11 25 16 9 31 Use the table and n = 4 to estimate the following. Because the data is not monotone (only increasing or only decreasing), you should sketch a possible graph and draw the rectangles. 20 (integral) f(x)dx 4

Solution:

X      4      8       12       16          20

F(x)   11      25      16       9           31

A function is said to be increasing if , x_{1}> x_{2}, then f(x_{1})>f(x_{2}) {\text{and decreasing if } x_{1}> x_{2}, then f(x_{1})<f(x_{2}).

As you can see from the table given as x increases , f(x) increases as well as decreases.

So it is increasing as well as decreasing function.

Now plotting the graph on two dimensional coordinate plane and drawn perpendicular from these points on X axis.

\int_{4}^{20}f(x)dx=\int_{4}^{8}f(x)dx+\int_{8}^{12}f(x)dx+\int_{12}^{16}f(x)dx+\int_{16}^{20}f(x)dx

Equation of line joining two points (x_{1},y_{1}), and (x_{2},y_{2}) is \frac{y-y_{1}}{x-x_{1}}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Equation of line joining two points (4,11) and (8,25) is

4(y-11)=14(x-4)

4 y -44 = 14 x -56

4 y = 14 x -12

y= \frac{7x}{2}-3 --------(1)

Area under line (1) is

\int_{4}^{8}f(x)dx=\int_{4}^{8}(\frac{7x}{2}-3) dx=\frac{7x^2}{4}-3x\left \{ {{x=8} \atop {x=4}} \right. =112-24-28+12=72

Equation of line joining (8,25) and (12,16) is

4(y-25 )= -9(x-8)

4 y - 100= -9 x + 72

4 y = -9 x + 172

y = \frac{-9x}{4} +43--------(2)

Area under line 2 is

\int_{8}^{12}f(x)dx=\int_{8}^{12}(\frac{-9x}{4} +43)dx=\left \{ {{x=12} \atop {x=8}}   \frac{-9x^2}{8} +43x = -162 +516+72-344=82

Equation of line joining (12,16) and (16,9) is

-4(y-16) = 7(x-12)

-4 y + 64= 7 x -84

-4 y = 7 x -148

y = \frac{-7x}{4} +37-----------(3)

Area under the line 3 is

\int_{12}^{16}f(x)dx=\int_{12}^{16}(\frac{-7 x}{4} +37)dx=\left \{ {{x=16} \atop {x=12}}   \frac{-7x^2}{8} +37 x = -224 +592+126-444=50

Equation of line joining (16,9) and (20,31) is

4(y-9) = 22(x-16)

4 y - 36 = 22 x - 352

4 y = 22 x - 316

y= \frac{11x}{2}-79---------(4)

Area under the line 4 is

\int_{16}^{20}f(x)dx=\int_{16}^{20}(\frac{11 x}{2} -79)dx

=\left \{ {{x=20} \atop {x=16}}   \frac{11x^2}{4} -79 x = 1100-1580-704+1264=2364-2284=80


Total Area = Area under the line (1+2+3+4)

=\int_{4}^{20}f(x)dx=\int_{4}^{8}f(x)dx+\int_{8}^{12}f(x)dx+\int_{12}^{16}f(x)dx+\int_{16}^{20}f(x)dx

= 72 +82+50+80

= 284 square units

You can find area using the formual of area of trapezoid which is = \frac{1}{2}[Sum of parallel sides]× [perpendicular distance between them]

ANSWERED AT 23/09/2019 - 04:25 AM


QUESTION POSTED AT 23/09/2019 - 04:25 AM

If the sales tax rate is 7.25% in California,then how much would you pay in Los Angeles for a pair of shoes that cost $39.00? Need by 10:00 and showed work

39*7.25% = 2.8275 roundup to 2.83
39+2.83 = 41.83 & that is the total cost after tax

ANSWERED AT 23/09/2019 - 04:24 AM


QUESTION POSTED AT 23/09/2019 - 04:24 AM

How many terms are in the exspression 2x+3y-4z

There are 3 terms in you math subjected question, hope this helps!

ANSWERED AT 23/09/2019 - 04:24 AM


QUESTION POSTED AT 23/09/2019 - 04:24 AM

Wat is 1/2 ÷ 1/3 please show work and simplify

Make the denominators the same as the LCD 1/3 times 3 subtracted by 1/3 times 2
So it would be 3/6 subtracted by 2/6 
The answer is 1/6

ANSWERED AT 23/09/2019 - 04:23 AM


QUESTION POSTED AT 23/09/2019 - 04:23 AM

In a bicycle store,a $500 bicycle is marked,"get a 30% discount."What is the sale price of the bicycle? Need by 10:00 and I need to show work

$500 x .7 (price-discount=sale price) = $350 

ANSWERED AT 23/09/2019 - 04:23 AM


QUESTION POSTED AT 23/09/2019 - 04:23 AM

What is 9/12 in simplest form?

3/4 is the answer in simplest form.

ANSWERED AT 23/09/2019 - 04:23 AM


QUESTION POSTED AT 23/09/2019 - 04:23 AM

Rewrite the equation 8x-3y-5 -0 in slope intercept form

If the equation is 8x-3y-5=0 
Then the slope intercept form would be:
y=8/3x-5/3

ANSWERED AT 23/09/2019 - 04:23 AM


QUESTION POSTED AT 23/09/2019 - 04:23 AM

Rewrite the equation 5x-2y-7

To rewrite in slope-intercept form, solve for y. This is because slope-intercept form is y = mx + b, and the equation has y by itself.
5x - 2y - 7 =0
-2y = -5x + 7
y = (5/2)x - 7/2

ANSWERED AT 23/09/2019 - 04:22 AM


QUESTION POSTED AT 23/09/2019 - 04:22 AM

Equivalent ratios to 16:12 and 12:16

It is 36:24 and 24:36, as what I know of

ANSWERED AT 23/09/2019 - 04:21 AM


QUESTION POSTED AT 23/09/2019 - 04:21 AM

How do you find slope and y-intercept form in a word problem?

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m = (y2-y1)/(x2-x1)
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y = mx+c

ANSWERED AT 23/09/2019 - 04:20 AM


QUESTION POSTED AT 23/09/2019 - 04:20 AM

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ANSWERED AT 23/09/2019 - 04:19 AM


QUESTION POSTED AT 23/09/2019 - 04:19 AM

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ANSWERED AT 23/09/2019 - 04:19 AM


QUESTION POSTED AT 23/09/2019 - 04:19 AM

Explain how to find 4×80. show your work.

 80
x 4
=320

4*0=0
4*8=32 (add the 0)
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times 4 by 80...BTW if you are in highschool then you should be able to do simple math (or at least use a calculator)

ANSWERED AT 23/09/2019 - 04:18 AM


QUESTION POSTED AT 23/09/2019 - 04:18 AM

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ANSWERED AT 23/09/2019 - 04:18 AM


QUESTION POSTED AT 23/09/2019 - 04:18 AM

How to simplify 4d + 3x - d + 2x

Combine like terms

4d - d
and
3x + 2x

so,

The answer is,
3d +5x

ANSWERED AT 23/09/2019 - 04:17 AM


QUESTION POSTED AT 23/09/2019 - 04:17 AM

What percent of 64 is 16?

16          x
----  =    ----
64        100
Then do cross multiply to get 1600 = 64x
Then divide both sides by 64
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ANSWERED AT 23/09/2019 - 04:16 AM


QUESTION POSTED AT 23/09/2019 - 04:16 AM

Pedro made a line plot to show the heights of the plants in his garden gow many plants are less than 3 inches tall

Unable to answer question without further information.

ANSWERED AT 23/09/2019 - 04:15 AM


QUESTION POSTED AT 23/09/2019 - 04:15 AM

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ANSWERED AT 23/09/2019 - 04:15 AM


QUESTION POSTED AT 23/09/2019 - 04:15 AM

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I would love to help you, But I can't draw a picture. Draw 24 with 2 base tens and 4 ones. Take away 20. I THINK that the last part is saying that you can add stuff to your result to get the number you had before.( THIS IS PROBABLY NOT TRUE, JUST LETTIN YA KNOW ME THOUGHTS)

ANSWERED AT 23/09/2019 - 04:13 AM


QUESTION POSTED AT 23/09/2019 - 04:13 AM

How do you write eight and fifty nine hundreths in standard form

To write eight and fifty nine hundredths would be 8.59. The and I believe is simply to signify the separation between digits appearing to the left of the decimal point and ones appearing to the right of it.

ANSWERED AT 23/09/2019 - 04:13 AM


QUESTION POSTED AT 23/09/2019 - 04:13 AM

Janine has job offer sat two companies. One company offers a starting salary of 28,000 with a raise of 3,000 each year. The other company offers a starting salary 36,000 with a raise of 2,000 each year A. After how many years would Janine's salary be the same with both companies B. what would the salary be ? Show work please

28,000+3,000x=36,000+2,000x
X will be the number of years worked, now we just have to make the equation true.
I did the work out already, and the answer is 8!
If you want to check my answer just substitute it in to the problem for x.

ANSWERED AT 23/09/2019 - 04:12 AM


QUESTION POSTED AT 23/09/2019 - 04:12 AM

What is the simplest form for 20/24 and 12/28

Simplest form of 20\24=5\6 and 12\28=3\7

ANSWERED AT 23/09/2019 - 04:11 AM


QUESTION POSTED AT 23/09/2019 - 04:11 AM