Graph -27x+18y=54??????????

Mathematics

1 answer:

Sindrei [870]3 years ago

7 0

Answer:

There should be 3 points that you have. (0, 3), (2, 6), and (-2, 0)

Step-by-step explanation:

Alright so since everything there is divisible by 9 you can divide each number by 9 to get:

-3x + 2y = 6

Now, to graph this you need to put it in y = mx + b form. So, add the 3x to both sides of the equation.

-3x +2y = 6

+3x +3x

2y = 3x + 6

Now you would divide 2 on both sides because you need y to be alone, to get:

y = 3/2 x + 3

Now Graphing:

Since 3 is positive that is your y-axis. So put a dot on + 3 on the y-axis. That's your (0, 3) point.

Then 3/2 is your slope. Slope is rise / run. So you start at your dot from the y-axis go up 3 (because that's your rise from slope) then you go to the right 2 (therefore, your run) then place a dot there. This is your (2, 6) point)

Usually you want to do the negative side of that also. To do that you would once again start at the 3 (y-axis point). Now you would pretty much make your slope negative. Starting at 3, you would go down 3 (your rise for slope) then go to the left 2 (your run for slope). This is your (-2, 0) point.

Do you understand it?

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A coefficient can be either '15' or '25'.
A variable can be either 'w' or 'm'.
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Part B:
Simply substitute, or plug-in, the numbers and solve.
***Step 1:
65+15w+25m --> 65+15(20)+25(3)
You do this because you are substituting the 'w' for the number
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***Step 2:
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Begin to solve, using PEMDAS, or whichever acronym you learned.
Remember, if you are using PEMDAS, recall that the order is Parenthesis,
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***Step 3:
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Now, we get to addition. You simply add everything up to get your final
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Part C:
If Jaxon had $75, then yes, the coefficients would change.
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CANNOT have $75 in his bank account. We can change the equation
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Happy new year, <br> add 2000 + 21 = 2021<br> trying to be fun and creative.

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HAPPY NEW YEAR:)

not only today

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